LayoutTests:

LayoutTests:

        Reviewed by harrison

        <rdar://problem/4700297>
        REGRESSION: After replacing a misspelled word in a sentence, the selection extends to end of current line

        Fixed:
        * editing/pasteboard/smart-paste-002-expected.checksum:
        * editing/pasteboard/smart-paste-002-expected.png:
        * editing/pasteboard/smart-paste-002-expected.txt:
        Added to demonstrate fix:
        * editing/pasteboard/4700297-expected.checksum: Added.
        * editing/pasteboard/4700297-expected.png: Added.
        * editing/pasteboard/4700297-expected.txt: Added.
        * editing/pasteboard/4700297.html: Added.
        Removed a superfluous style span:
        * editing/deleting/pruning-after-merge-1-expected.txt:
        * editing/pasteboard/interchange-newline-1-expected.txt:
        * editing/pasteboard/paste-text-019-expected.checksum:
        * editing/pasteboard/paste-text-019-expected.png:
        * editing/pasteboard/paste-text-019-expected.txt:
        * editing/selection/drag-to-contenteditable-iframe-expected.txt:
        Accidently checked in bad results yesterday:
        * editing/pasteboard/copy-paste-bidi-expected.txt:
        Equivalent render tree:
        * editing/pasteboard/smart-paste-001-expected.txt:

WebCore:

        Reviewed by harrison

        <rdar://problem/4700297>
        REGRESSION: After replacing a misspelled word in a sentence, the selection extends to end of current line

        * editing/ReplaceSelectionCommand.cpp:
        (WebCore::ReplaceSelectionCommand::doApply): Rebalance whitespace
        around insertionPos before insertion because the content might
        cause a collapse, e.g. inserting <div>foo</div> at hello^ world.
        * editing/htmlediting.cpp:
        (WebCore::rebalanceWhitespaceInTextNode): Rebalance with all nbsps
        for simplicity, we can produce sequences of regular spaces and
        nbsps on serialization (10636).

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@16122 268f45cc-cd09-0410-ab3c-d52691b4dbfc