Unreviewed, rolling out r130812.

http://trac.webkit.org/changeset/130812
https://bugs.webkit.org/show_bug.cgi?id=98826

Caused fast/text/shaping/shaping-selection-rect to fail
(Requested by abarth|gardening on #webkit).

Patch by Sheriff Bot <webkit.review.bot@gmail.com> on 2012-10-09

* platform/graphics/Font.cpp:
(WebCore::Font::width):
* platform/graphics/Font.h:
(Font):
* platform/graphics/mac/ComplexTextController.cpp:
(WebCore::TextLayout::width):
(WebCore::Font::width):
(WebCore::ComplexTextController::advance):
* platform/graphics/mac/ComplexTextController.h:
(ComplexTextController):
* rendering/RenderBlock.h:
(WebCore):
(LineBreaker):
(RenderBlock):
* rendering/RenderBlockLineLayout.cpp:
(WebCore::setLogicalWidthForTextRun):
(WebCore::RenderBlock::computeInlineDirectionPositionsForLine):
(WebCore::RenderBlock::createLineBoxesFromBidiRuns):
(WebCore::RenderBlock::layoutRunsAndFloatsInRange):
(WebCore::textWidth):
(WebCore::RenderBlock::LineBreaker::nextLineBreak):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@130820 268f45cc-cd09-0410-ab3c-d52691b4dbfc

diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
index 77ce8bd..9b419fd 100644 (file)
--- a/Source/WebCore/ChangeLog
+++ b/Source/WebCore/ChangeLog
@@ -1,3 +1,34 @@
+2012-10-09  Sheriff Bot  <webkit.review.bot@gmail.com>
+
+        Unreviewed, rolling out r130812.
+        http://trac.webkit.org/changeset/130812
+        https://bugs.webkit.org/show_bug.cgi?id=98826
+
+        Caused fast/text/shaping/shaping-selection-rect to fail
+        (Requested by abarth|gardening on #webkit).
+
+        * platform/graphics/Font.cpp:
+        (WebCore::Font::width):
+        * platform/graphics/Font.h:
+        (Font):
+        * platform/graphics/mac/ComplexTextController.cpp:
+        (WebCore::TextLayout::width):
+        (WebCore::Font::width):
+        (WebCore::ComplexTextController::advance):
+        * platform/graphics/mac/ComplexTextController.h:
+        (ComplexTextController):
+        * rendering/RenderBlock.h:
+        (WebCore):
+        (LineBreaker):
+        (RenderBlock):
+        * rendering/RenderBlockLineLayout.cpp:
+        (WebCore::setLogicalWidthForTextRun):
+        (WebCore::RenderBlock::computeInlineDirectionPositionsForLine):
+        (WebCore::RenderBlock::createLineBoxesFromBidiRuns):
+        (WebCore::RenderBlock::layoutRunsAndFloatsInRange):
+        (WebCore::textWidth):
+        (WebCore::RenderBlock::LineBreaker::nextLineBreak):
+
 2012-10-09  Ryosuke Niwa  <rniwa@webkit.org>
 
         DOM/textarea-edit.html spends 35% of time in numGraphemeClusters

diff --git a/Source/WebCore/platform/graphics/Font.cpp b/Source/WebCore/platform/graphics/Font.cpp
index 1a0760e..ee9dc75 100644 (file)
--- a/Source/WebCore/platform/graphics/Font.cpp
+++ b/Source/WebCore/platform/graphics/Font.cpp
@@ -220,7 +220,7 @@ void Font::deleteLayout(TextLayout*)
 {
 }
 
-float Font::width(TextLayout&, unsigned, unsigned, HashSet<const SimpleFontData*>*)
+float Font::width(TextLayout&, unsigned, unsigned)
 {
     ASSERT_NOT_REACHED();
     return 0;

diff --git a/Source/WebCore/platform/graphics/Font.h b/Source/WebCore/platform/graphics/Font.h
index 55163ec..0f294ee 100644 (file)
--- a/Source/WebCore/platform/graphics/Font.h
+++ b/Source/WebCore/platform/graphics/Font.h
@@ -105,7 +105,7 @@ public:
 
     PassOwnPtr<TextLayout> createLayout(RenderText*, float xPos, bool collapseWhiteSpace) const;
     static void deleteLayout(TextLayout*);
-    static float width(TextLayout&, unsigned from, unsigned len, HashSet<const SimpleFontData*>* fallbackFonts = 0);
+    static float width(TextLayout&, unsigned from, unsigned len);
 
     int offsetForPosition(const TextRun&, float position, bool includePartialGlyphs) const;
     FloatRect selectionRectForText(const TextRun&, const FloatPoint&, int h, int from = 0, int to = -1) const;

diff --git a/Source/WebCore/platform/graphics/mac/ComplexTextController.cpp b/Source/WebCore/platform/graphics/mac/ComplexTextController.cpp
index 7e0655b..026ba12 100644 (file)
--- a/Source/WebCore/platform/graphics/mac/ComplexTextController.cpp
+++ b/Source/WebCore/platform/graphics/mac/ComplexTextController.cpp
@@ -54,13 +54,13 @@ public:
     {
     }
 
-    float width(unsigned from, unsigned len, HashSet<const SimpleFontData*>* fallbackFonts)
+    float width(unsigned from, unsigned len)
     {
-        m_controller->advance(from, 0, ByWholeGlyphs, fallbackFonts);
+        m_controller->advance(from, 0, ByWholeGlyphs);
         float beforeWidth = m_controller->runWidthSoFar();
         if (m_font.wordSpacing() && from && Font::treatAsSpace(m_run[from]))
             beforeWidth += m_font.wordSpacing();
-        m_controller->advance(from + len, 0, ByWholeGlyphs, fallbackFonts);
+        m_controller->advance(from + len, 0, ByWholeGlyphs);
         float afterWidth = m_controller->runWidthSoFar();
         return afterWidth - beforeWidth;
     }
@@ -94,9 +94,9 @@ void Font::deleteLayout(TextLayout* layout)
     delete layout;
 }
 
-float Font::width(TextLayout& layout, unsigned from, unsigned len, HashSet<const SimpleFontData*>* fallbackFonts)
+float Font::width(TextLayout& layout, unsigned from, unsigned len)
 {
-    return layout.width(from, len, fallbackFonts);
+    return layout.width(from, len);
 }
 
 static inline CGFloat roundCGFloat(CGFloat f)
@@ -460,7 +460,7 @@ unsigned ComplexTextController::incrementCurrentRun(unsigned& leftmostGlyph)
     return indexOfCurrentRun(leftmostGlyph);
 }
 
-void ComplexTextController::advance(unsigned offset, GlyphBuffer* glyphBuffer, GlyphIterationStyle iterationStyle, HashSet<const SimpleFontData*>* fallbackFonts)
+void ComplexTextController::advance(unsigned offset, GlyphBuffer* glyphBuffer, GlyphIterationStyle iterationStyle)
 {
     if (static_cast<int>(offset) > m_end)
         offset = m_end;
@@ -485,8 +485,6 @@ void ComplexTextController::advance(unsigned offset, GlyphBuffer* glyphBuffer, G
         size_t glyphCount = complexTextRun.glyphCount();
         unsigned g = ltr ? m_glyphInCurrentRun : glyphCount - 1 - m_glyphInCurrentRun;
         unsigned k = leftmostGlyph + g;
-        if (fallbackFonts && complexTextRun.fontData() != m_font.primaryFont())
-            fallbackFonts->add(complexTextRun.fontData());
 
         while (m_glyphInCurrentRun < glyphCount) {
             unsigned glyphStartOffset = complexTextRun.indexAt(g);

diff --git a/Source/WebCore/platform/graphics/mac/ComplexTextController.h b/Source/WebCore/platform/graphics/mac/ComplexTextController.h
index 25c946e..91aa064 100644 (file)
--- a/Source/WebCore/platform/graphics/mac/ComplexTextController.h
+++ b/Source/WebCore/platform/graphics/mac/ComplexTextController.h
@@ -54,7 +54,7 @@ public:
     ComplexTextController(const Font*, const TextRun&, bool mayUseNaturalWritingDirection = false, HashSet<const SimpleFontData*>* fallbackFonts = 0, bool forTextEmphasis = false);
 
     // Advance and emit glyphs up to the specified character.
-    void advance(unsigned to, GlyphBuffer* = 0, GlyphIterationStyle = IncludePartialGlyphs, HashSet<const SimpleFontData*>* fallbackFonts = 0);
+    void advance(unsigned to, GlyphBuffer* = 0, GlyphIterationStyle = IncludePartialGlyphs);
 
     // Compute the character offset for a given x coordinate.
     int offsetForPosition(float x, bool includePartialGlyphs);

diff --git a/Source/WebCore/rendering/RenderBlock.h b/Source/WebCore/rendering/RenderBlock.h
index 6e7ee63..20482b1 100644 (file)
--- a/Source/WebCore/rendering/RenderBlock.h
+++ b/Source/WebCore/rendering/RenderBlock.h
@@ -53,7 +53,6 @@ struct PaintInfo;
 class LineInfo;
 class RenderRubyRun;
 class TextLayout;
-class WordMeasurement;
 
 template <class Iterator, class Run> class BidiResolver;
 template <class Run> class BidiRunList;
@@ -63,7 +62,6 @@ typedef MidpointState<InlineIterator> LineMidpointState;
 typedef WTF::ListHashSet<RenderBox*, 16> TrackedRendererListHashSet;
 typedef WTF::HashMap<const RenderBlock*, TrackedRendererListHashSet*> TrackedDescendantsMap;
 typedef WTF::HashMap<const RenderBox*, HashSet<RenderBlock*>*> TrackedContainerMap;
-typedef Vector<WordMeasurement, 64> WordMeasurements;
 
 enum CaretType { CursorCaret, DragCaret };
 
@@ -731,7 +729,7 @@ private:
             reset();
         }
 
-        InlineIterator nextLineBreak(InlineBidiResolver&, LineInfo&, RenderTextInfo&, FloatingObject* lastFloatFromPreviousLine, unsigned consecutiveHyphenatedLines, WordMeasurements&);
+        InlineIterator nextLineBreak(InlineBidiResolver&, LineInfo&, RenderTextInfo&, FloatingObject* lastFloatFromPreviousLine, unsigned consecutiveHyphenatedLines);
 
         bool lineWasHyphenated() { return m_hyphenated; }
         const Vector<RenderBox*>& positionedObjects() { return m_positionedObjects; }
@@ -759,7 +757,7 @@ private:
 
     void setMarginsForRubyRun(BidiRun*, RenderRubyRun*, RenderObject*, const LineInfo&);
 
-    void computeInlineDirectionPositionsForLine(RootInlineBox*, const LineInfo&, BidiRun* firstRun, BidiRun* trailingSpaceRun, bool reachedEnd, GlyphOverflowAndFallbackFontsMap&, VerticalPositionCache&, WordMeasurements&);
+    void computeInlineDirectionPositionsForLine(RootInlineBox*, const LineInfo&, BidiRun* firstRun, BidiRun* trailingSpaceRun, bool reachedEnd, GlyphOverflowAndFallbackFontsMap&, VerticalPositionCache&);
     void computeBlockDirectionPositionsForLine(RootInlineBox*, BidiRun*, GlyphOverflowAndFallbackFontsMap&, VerticalPositionCache&);
     void deleteEllipsisLineBoxes();
     void checkLinesForTextOverflow();
@@ -965,7 +963,7 @@ private:
     // End helper functions and structs used by layoutBlockChildren.
 
     // Helper function for layoutInlineChildren()
-    RootInlineBox* createLineBoxesFromBidiRuns(BidiRunList<BidiRun>&, const InlineIterator& end, LineInfo&, VerticalPositionCache&, BidiRun* trailingSpaceRun, WordMeasurements&);
+    RootInlineBox* createLineBoxesFromBidiRuns(BidiRunList<BidiRun>&, const InlineIterator& end, LineInfo&, VerticalPositionCache&, BidiRun* trailingSpaceRun);
     void layoutRunsAndFloats(LineLayoutState&, bool hasInlineChild);
     void layoutRunsAndFloatsInRange(LineLayoutState&, InlineBidiResolver&, const InlineIterator& cleanLineStart, const BidiStatus& cleanLineBidiStatus, unsigned consecutiveHyphenatedLines);
     void linkToEndLineIfNeeded(LineLayoutState&);

diff --git a/Source/WebCore/rendering/RenderBlockLineLayout.cpp b/Source/WebCore/rendering/RenderBlockLineLayout.cpp
index f51325b..2f933f4 100755 (executable)
--- a/Source/WebCore/rendering/RenderBlockLineLayout.cpp
+++ b/Source/WebCore/rendering/RenderBlockLineLayout.cpp
@@ -692,40 +692,22 @@ static inline float measureHyphenWidth(RenderText* renderer, const Font& font)
     return font.width(RenderBlock::constructTextRun(renderer, font, style->hyphenString().string(), style));
 }
 
-class WordMeasurement {
-public:
-    WordMeasurement()
-        : renderer(0)
-        , width(0)
-        , startOffset(0)
-        , endOffset(0)
-    {
-    }
-    
-    RenderText* renderer;
-    float width;
-    int startOffset;
-    int endOffset;
-    HashSet<const SimpleFontData*> fallbackFonts;
-};
-
 static inline void setLogicalWidthForTextRun(RootInlineBox* lineBox, BidiRun* run, RenderText* renderer, float xPos, const LineInfo& lineInfo,
-                                             GlyphOverflowAndFallbackFontsMap& textBoxDataMap, VerticalPositionCache& verticalPositionCache, WordMeasurements& wordMeasurements)
+                                   GlyphOverflowAndFallbackFontsMap& textBoxDataMap, VerticalPositionCache& verticalPositionCache)
 {
     HashSet<const SimpleFontData*> fallbackFonts;
     GlyphOverflow glyphOverflow;
     
-    const Font& font = renderer->style(lineInfo.isFirstLine())->font();
     // Always compute glyph overflow if the block's line-box-contain value is "glyphs".
     if (lineBox->fitsToGlyphs()) {
         // If we don't stick out of the root line's font box, then don't bother computing our glyph overflow. This optimization
         // will keep us from computing glyph bounds in nearly all cases.
         bool includeRootLine = lineBox->includesRootLineBoxFontOrLeading();
         int baselineShift = lineBox->verticalPositionForBox(run->m_box, verticalPositionCache);
-        int rootDescent = includeRootLine ? font.fontMetrics().descent() : 0;
-        int rootAscent = includeRootLine ? font.fontMetrics().ascent() : 0;
-        int boxAscent = font.fontMetrics().ascent() - baselineShift;
-        int boxDescent = font.fontMetrics().descent() + baselineShift;
+        int rootDescent = includeRootLine ? lineBox->renderer()->style(lineInfo.isFirstLine())->font().fontMetrics().descent() : 0;
+        int rootAscent = includeRootLine ? lineBox->renderer()->style(lineInfo.isFirstLine())->font().fontMetrics().ascent() : 0;
+        int boxAscent = renderer->style(lineInfo.isFirstLine())->font().fontMetrics().ascent() - baselineShift;
+        int boxDescent = renderer->style(lineInfo.isFirstLine())->font().fontMetrics().descent() + baselineShift;
         if (boxAscent > rootDescent ||  boxDescent > rootAscent)
             glyphOverflow.computeBounds = true; 
     }
@@ -735,45 +717,7 @@ static inline void setLogicalWidthForTextRun(RootInlineBox* lineBox, BidiRun* ru
         const Font& font = renderer->style(lineInfo.isFirstLine())->font();
         hyphenWidth = measureHyphenWidth(renderer, font);
     }
-    float measuredWidth = 0;
-    bool kerningIsEnabled = font.typesettingFeatures() & Kerning;
-    
-    // Since we don't cache glyph overflows, we need to re-measure the run if
-    // the style is linebox-contain: glyph.
-    
-    if (!lineBox->fitsToGlyphs() && renderer->canUseSimpleFontCodePath()) {
-        int lastEndOffset = run->m_start;
-        for (size_t i = 0, size = wordMeasurements.size(); i < size && lastEndOffset < run->m_stop; ++i) {
-            const WordMeasurement& wordMeasurement = wordMeasurements[i];
-            if (wordMeasurement.width <=0 || wordMeasurement.startOffset == wordMeasurement.endOffset)
-                continue;
-            if (wordMeasurement.renderer != renderer || wordMeasurement.startOffset != lastEndOffset || wordMeasurement.endOffset > run->m_stop)
-                continue;
-
-            lastEndOffset = wordMeasurement.endOffset;
-            if (kerningIsEnabled && lastEndOffset == run->m_stop) {
-                measuredWidth += renderer->width(wordMeasurement.startOffset, lastEndOffset - wordMeasurement.startOffset, xPos, lineInfo.isFirstLine());
-                if (i > 0)
-                    measuredWidth += renderer->style()->wordSpacing();
-            } else
-                measuredWidth += wordMeasurement.width;
-            if (!wordMeasurement.fallbackFonts.isEmpty()) {
-                HashSet<const SimpleFontData*>::const_iterator end = wordMeasurement.fallbackFonts.end();
-                for (HashSet<const SimpleFontData*>::const_iterator it = wordMeasurement.fallbackFonts.begin(); it != end; ++it)
-                    fallbackFonts.add(*it);
-            }
-        }
-        if (measuredWidth && lastEndOffset != run->m_stop) {
-            // If we don't have enough cached data, we'll measure the run again.
-            measuredWidth = 0;
-            fallbackFonts.clear();
-        }
-    }
-
-    if (!measuredWidth)
-        measuredWidth = renderer->width(run->m_start, run->m_stop - run->m_start, xPos, lineInfo.isFirstLine(), &fallbackFonts, &glyphOverflow);
-
-    run->m_box->setLogicalWidth(measuredWidth + hyphenWidth);
+    run->m_box->setLogicalWidth(renderer->width(run->m_start, run->m_stop - run->m_start, xPos, lineInfo.isFirstLine(), &fallbackFonts, &glyphOverflow) + hyphenWidth);
     if (!fallbackFonts.isEmpty()) {
         ASSERT(run->m_box->isText());
         GlyphOverflowAndFallbackFontsMap::iterator it = textBoxDataMap.add(toInlineTextBox(run->m_box), make_pair(Vector<const SimpleFontData*>(), GlyphOverflow())).iterator;
@@ -863,7 +807,7 @@ void RenderBlock::updateLogicalWidthForAlignment(const ETextAlign& textAlign, Bi
 }
 
 void RenderBlock::computeInlineDirectionPositionsForLine(RootInlineBox* lineBox, const LineInfo& lineInfo, BidiRun* firstRun, BidiRun* trailingSpaceRun, bool reachedEnd,
-                                                         GlyphOverflowAndFallbackFontsMap& textBoxDataMap, VerticalPositionCache& verticalPositionCache, WordMeasurements& wordMeasurements)
+                                                         GlyphOverflowAndFallbackFontsMap& textBoxDataMap, VerticalPositionCache& verticalPositionCache)
 {
     ETextAlign textAlign = textAlignmentForLine(!reachedEnd && !lineBox->endsWithBreak());
     
@@ -910,7 +854,7 @@ void RenderBlock::computeInlineDirectionPositionsForLine(RootInlineBox* lineBox,
                 needsWordSpacing = !isSpaceOrNewline(rt->characters()[r->m_stop - 1]) && r->m_stop == length;
             }
 
-            setLogicalWidthForTextRun(lineBox, r, rt, totalLogicalWidth, lineInfo, textBoxDataMap, verticalPositionCache, wordMeasurements);
+            setLogicalWidthForTextRun(lineBox, r, rt, totalLogicalWidth, lineInfo, textBoxDataMap, verticalPositionCache);
         } else {
             isAfterExpansion = false;
             if (!r->m_object->isRenderInline()) {
@@ -1137,7 +1081,7 @@ static inline void constructBidiRuns(InlineBidiResolver& topResolver, BidiRunLis
 }
 
 // This function constructs line boxes for all of the text runs in the resolver and computes their position.
-RootInlineBox* RenderBlock::createLineBoxesFromBidiRuns(BidiRunList<BidiRun>& bidiRuns, const InlineIterator& end, LineInfo& lineInfo, VerticalPositionCache& verticalPositionCache, BidiRun* trailingSpaceRun, WordMeasurements& wordMeasurements)
+RootInlineBox* RenderBlock::createLineBoxesFromBidiRuns(BidiRunList<BidiRun>& bidiRuns, const InlineIterator& end, LineInfo& lineInfo, VerticalPositionCache& verticalPositionCache, BidiRun* trailingSpaceRun)
 {
     if (!bidiRuns.runCount())
         return 0;
@@ -1161,7 +1105,7 @@ RootInlineBox* RenderBlock::createLineBoxesFromBidiRuns(BidiRunList<BidiRun>& bi
     
     // Now we position all of our text runs horizontally.
     if (!isSVGRootInlineBox)
-        computeInlineDirectionPositionsForLine(lineBox, lineInfo, bidiRuns.firstRun(), trailingSpaceRun, end.atEnd(), textBoxDataMap, verticalPositionCache, wordMeasurements);
+        computeInlineDirectionPositionsForLine(lineBox, lineInfo, bidiRuns.firstRun(), trailingSpaceRun, end.atEnd(), textBoxDataMap, verticalPositionCache);
     
     // Now position our text runs vertically.
     computeBlockDirectionPositionsForLine(lineBox, bidiRuns.firstRun(), textBoxDataMap, verticalPositionCache);
@@ -1407,8 +1351,7 @@ void RenderBlock::layoutRunsAndFloatsInRange(LineLayoutState& layoutState, Inlin
             exclusionShapeInsideInfo->computeSegmentsForLine(lineTop, lineBottom);
         }
 #endif
-        WordMeasurements wordMeasurements;
-        end = lineBreaker.nextLineBreak(resolver, layoutState.lineInfo(), renderTextInfo, lastFloatFromPreviousLine, consecutiveHyphenatedLines, wordMeasurements);
+        end = lineBreaker.nextLineBreak(resolver, layoutState.lineInfo(), renderTextInfo, lastFloatFromPreviousLine, consecutiveHyphenatedLines);
         if (resolver.position().atEnd()) {
             // FIXME: We shouldn't be creating any runs in nextLineBreak to begin with!
             // Once BidiRunList is separated from BidiResolver this will not be needed.
@@ -1450,7 +1393,7 @@ void RenderBlock::layoutRunsAndFloatsInRange(LineLayoutState& layoutState, Inlin
             // inline flow boxes.
 
             LayoutUnit oldLogicalHeight = logicalHeight();
-            RootInlineBox* lineBox = createLineBoxesFromBidiRuns(bidiRuns, end, layoutState.lineInfo(), verticalPositionCache, trailingSpaceRun, wordMeasurements);
+            RootInlineBox* lineBox = createLineBoxesFromBidiRuns(bidiRuns, end, layoutState.lineInfo(), verticalPositionCache, trailingSpaceRun);
 
             bidiRuns.deleteRuns();
             resolver.markCurrentRunEmpty(); // FIXME: This can probably be replaced by an ASSERT (or just removed).
@@ -2108,14 +2051,13 @@ static bool shouldSkipWhitespaceAfterStartObject(RenderBlock* block, RenderObjec
     return false;
 }
 
-static ALWAYS_INLINE float textWidth(RenderText* text, unsigned from, unsigned len, const Font& font, float xPos, bool isFixedPitch, bool collapseWhiteSpace, HashSet<const SimpleFontData*>* fallbackFonts = 0, TextLayout* layout = 0)
+static inline float textWidth(RenderText* text, unsigned from, unsigned len, const Font& font, float xPos, bool isFixedPitch, bool collapseWhiteSpace, TextLayout* layout = 0)
 {
-    GlyphOverflow glyphOverflow;
     if (isFixedPitch || (!from && len == text->textLength()) || text->style()->hasTextCombine())
-        return text->width(from, len, font, xPos, fallbackFonts, &glyphOverflow);
+        return text->width(from, len, font, xPos);
 
     if (layout)
-        return Font::width(*layout, from, len, fallbackFonts);
+        return Font::width(*layout, from, len);
 
     TextRun run = RenderBlock::constructTextRun(text, font, text->characters() + from, len, text->style());
     run.setCharactersLength(text->textLength() - from);
@@ -2124,7 +2066,7 @@ static ALWAYS_INLINE float textWidth(RenderText* text, unsigned from, unsigned l
     run.setCharacterScanForCodePath(!text->canUseSimpleFontCodePath());
     run.setTabSize(!collapseWhiteSpace, text->style()->tabSize());
     run.setXPos(xPos);
-    return font.width(run, fallbackFonts, &glyphOverflow);
+    return font.width(run);
 }
 
 static void tryHyphenating(RenderText* text, const Font& font, const AtomicString& localeIdentifier, unsigned consecutiveHyphenatedLines, int consecutiveHyphenatedLinesLimit, int minimumPrefixLength, int minimumSuffixLength, int lastSpace, int pos, float xPos, int availableWidth, bool isFixedPitch, bool collapseWhiteSpace, int lastSpaceWordSpacing, InlineIterator& lineBreak, int nextBreakable, bool& hyphenated)
@@ -2278,7 +2220,7 @@ void RenderBlock::LineBreaker::reset()
     m_clear = CNONE;
 }
 
-InlineIterator RenderBlock::LineBreaker::nextLineBreak(InlineBidiResolver& resolver, LineInfo& lineInfo, RenderTextInfo& renderTextInfo, FloatingObject* lastFloatFromPreviousLine, unsigned consecutiveHyphenatedLines, WordMeasurements& wordMeasurements)
+InlineIterator RenderBlock::LineBreaker::nextLineBreak(InlineBidiResolver& resolver, LineInfo& lineInfo, RenderTextInfo& renderTextInfo, FloatingObject* lastFloatFromPreviousLine, unsigned consecutiveHyphenatedLines)
 {
     reset();
 
@@ -2496,7 +2438,6 @@ InlineIterator RenderBlock::LineBreaker::nextLineBreak(InlineBidiResolver& resol
             int lastSpace = current.m_pos;
             float wordSpacing = currentStyle->wordSpacing();
             float lastSpaceWordSpacing = 0;
-            float wordSpacingForWordMeasurement = 0;
 
             float wrapW = width.uncommittedWidth() + inlineLogicalWidth(current.m_obj, !appliedStartWidth, true);
             float charWidth = 0;
@@ -2552,7 +2493,7 @@ InlineIterator RenderBlock::LineBreaker::nextLineBreak(InlineBidiResolver& resol
                 if ((breakAll || breakWords) && !midWordBreak) {
                     wrapW += charWidth;
                     bool midWordBreakIsBeforeSurrogatePair = U16_IS_LEAD(c) && current.m_pos + 1 < t->textLength() && U16_IS_TRAIL(t->characters()[current.m_pos + 1]);
-                    charWidth = textWidth(t, current.m_pos, midWordBreakIsBeforeSurrogatePair ? 2 : 1, f, width.committedWidth() + wrapW, isFixedPitch, collapseWhiteSpace, 0, textLayout);
+                    charWidth = textWidth(t, current.m_pos, midWordBreakIsBeforeSurrogatePair ? 2 : 1, f, width.committedWidth() + wrapW, isFixedPitch, collapseWhiteSpace, textLayout);
                     midWordBreak = width.committedWidth() + wrapW + charWidth > width.availableWidth();
                 }
 
@@ -2567,7 +2508,6 @@ InlineIterator RenderBlock::LineBreaker::nextLineBreak(InlineBidiResolver& resol
                             // new point.
                             ignoringSpaces = false;
                             lastSpaceWordSpacing = 0;
-                            wordSpacingForWordMeasurement = 0;
                             lastSpace = current.m_pos; // e.g., "Foo    goo", don't add in any of the ignored spaces.
                             addMidpoint(lineMidpointState, InlineIterator(0, current.m_obj, current.m_pos));
                             stoppedIgnoringSpaces = true;
@@ -2577,28 +2517,18 @@ InlineIterator RenderBlock::LineBreaker::nextLineBreak(InlineBidiResolver& resol
                         }
                     }
 
-                    wordMeasurements.grow(wordMeasurements.size() + 1);
-                    WordMeasurement& wordMeasurement = wordMeasurements.last();
-                    
-                    wordMeasurement.renderer = t;
-                    wordMeasurement.endOffset = current.m_pos;
-                    wordMeasurement.startOffset = lastSpace;
-                    
                     float additionalTmpW;
                     if (wordTrailingSpaceWidth && currentCharacterIsSpace)
-                        additionalTmpW = textWidth(t, lastSpace, current.m_pos + 1 - lastSpace, f, width.currentWidth(), isFixedPitch, collapseWhiteSpace, &wordMeasurement.fallbackFonts, textLayout) - wordTrailingSpaceWidth;
+                        additionalTmpW = textWidth(t, lastSpace, current.m_pos + 1 - lastSpace, f, width.currentWidth(), isFixedPitch, collapseWhiteSpace, textLayout) - wordTrailingSpaceWidth + lastSpaceWordSpacing;
                     else
-                        additionalTmpW = textWidth(t, lastSpace, current.m_pos - lastSpace, f, width.currentWidth(), isFixedPitch, collapseWhiteSpace, &wordMeasurement.fallbackFonts, textLayout);
-
-                    wordMeasurement.width = additionalTmpW + wordSpacingForWordMeasurement;
-                    additionalTmpW += lastSpaceWordSpacing;
+                        additionalTmpW = textWidth(t, lastSpace, current.m_pos - lastSpace, f, width.currentWidth(), isFixedPitch, collapseWhiteSpace, textLayout) + lastSpaceWordSpacing;
                     width.addUncommittedWidth(additionalTmpW);
                     if (!appliedStartWidth) {
                         width.addUncommittedWidth(inlineLogicalWidth(current.m_obj, true, false));
                         appliedStartWidth = true;
                     }
 
-                    applyWordSpacing = wordSpacing && currentCharacterIsSpace;
+                    applyWordSpacing =  wordSpacing && currentCharacterIsSpace;
 
                     if (!width.committedWidth() && autoWrap && !width.fitsOnLine())
                         width.fitBelowFloats();
@@ -2608,7 +2538,7 @@ InlineIterator RenderBlock::LineBreaker::nextLineBreak(InlineBidiResolver& resol
                         // as candidate width for this line.
                         bool lineWasTooWide = false;
                         if (width.fitsOnLine() && currentCharacterIsWS && currentStyle->breakOnlyAfterWhiteSpace() && !midWordBreak) {
-                            float charWidth = textWidth(t, current.m_pos, 1, f, width.currentWidth(), isFixedPitch, collapseWhiteSpace, &wordMeasurement.fallbackFonts, textLayout) + (applyWordSpacing ? wordSpacing : 0);
+                            float charWidth = textWidth(t, current.m_pos, 1, f, width.currentWidth(), isFixedPitch, collapseWhiteSpace, textLayout) + (applyWordSpacing ? wordSpacing : 0);
                             // Check if line is too big even without the extra space
                             // at the end of the line. If it is not, do nothing.
                             // If the line needs the extra whitespace to be too long,
@@ -2634,16 +2564,9 @@ InlineIterator RenderBlock::LineBreaker::nextLineBreak(InlineBidiResolver& resol
                                 }
                                 lBreak.increment();
                                 lineInfo.setPreviousLineBrokeCleanly(true);
-                                wordMeasurement.endOffset = lBreak.m_pos;
                             }
                             if (lBreak.m_obj && lBreak.m_pos && lBreak.m_obj->isText() && toRenderText(lBreak.m_obj)->textLength() && toRenderText(lBreak.m_obj)->characters()[lBreak.m_pos - 1] == softHyphen && style->hyphens() != HyphensNone)
                                 m_hyphenated = true;
-                            if (lBreak.m_pos && lBreak.m_pos != (unsigned)wordMeasurement.endOffset && !wordMeasurement.width) {
-                                if (charWidth) {
-                                    wordMeasurement.endOffset = lBreak.m_pos;
-                                    wordMeasurement.width = charWidth;
-                                }
-                            }
                             goto end; // Didn't fit. Jump to the end.
                         } else {
                             if (!betweenWords || (midWordBreak && !autoWrap))
@@ -2686,7 +2609,6 @@ InlineIterator RenderBlock::LineBreaker::nextLineBreak(InlineBidiResolver& resol
 
                     if (betweenWords) {
                         lastSpaceWordSpacing = applyWordSpacing ? wordSpacing : 0;
-                        wordSpacingForWordMeasurement = (applyWordSpacing && wordMeasurement.width) ? wordSpacing : 0;
                         lastSpace = current.m_pos;
                     }
 
@@ -2709,7 +2631,6 @@ InlineIterator RenderBlock::LineBreaker::nextLineBreak(InlineBidiResolver& resol
                     // new point.
                     ignoringSpaces = false;
                     lastSpaceWordSpacing = applyWordSpacing ? wordSpacing : 0;
-                    wordSpacingForWordMeasurement = (applyWordSpacing && wordMeasurements.last().width) ? wordSpacing : 0;
                     lastSpace = current.m_pos; // e.g., "Foo    goo", don't add in any of the ignored spaces.
                     addMidpoint(lineMidpointState, InlineIterator(0, current.m_obj, current.m_pos));
                 }
@@ -2742,16 +2663,8 @@ InlineIterator RenderBlock::LineBreaker::nextLineBreak(InlineBidiResolver& resol
                 atStart = false;
             }
 
-            wordMeasurements.grow(wordMeasurements.size() + 1);
-            WordMeasurement& wordMeasurement = wordMeasurements.last();
-            wordMeasurement.renderer = t;
-
             // IMPORTANT: current.m_pos is > length here!
-            float additionalTmpW = ignoringSpaces ? 0 : textWidth(t, lastSpace, current.m_pos - lastSpace, f, width.currentWidth(), isFixedPitch, collapseWhiteSpace, &wordMeasurement.fallbackFonts, textLayout);
-            wordMeasurement.startOffset = lastSpace;
-            wordMeasurement.endOffset = current.m_pos;
-            wordMeasurement.width = ignoringSpaces ? 0 : additionalTmpW + wordSpacingForWordMeasurement;
-            additionalTmpW += lastSpaceWordSpacing;
+            float additionalTmpW = ignoringSpaces ? 0 : textWidth(t, lastSpace, current.m_pos - lastSpace, f, width.currentWidth(), isFixedPitch, collapseWhiteSpace, textLayout) + lastSpaceWordSpacing;
             width.addUncommittedWidth(additionalTmpW + inlineLogicalWidth(current.m_obj, !appliedStartWidth, includeEndWidth));
             includeEndWidth = false;