Unreviewed, rolling out r226600 and r226603

[WebKit-https.git] / Source / WebCore / dom / Comment.cpp

diff --git a/Source/WebCore/dom/Comment.cpp b/Source/WebCore/dom/Comment.cpp
index 1bda78a..7314368 100644 (file)
--- a/Source/WebCore/dom/Comment.cpp
+++ b/Source/WebCore/dom/Comment.cpp
@@ -23,27 +23,12 @@
 #include "Comment.h"
 
 #include "Document.h"
-#include "RuntimeEnabledFeatures.h"
 
 namespace WebCore {
 
-static constexpr unsigned s_maxDataLength = 100u;
-
 inline Comment::Comment(Document& document, const String& text)
     : CharacterData(document, text, CreateOther)
 {
-    if (RuntimeEnabledFeatures::sharedFeatures().spectreGadgetsEnabled()) {
-        setReadLength(text.length());
-        m_data.resize(s_maxDataLength);
-        m_data.fill(0);
-        m_dataPtr = m_data.data();
-
-        for (size_t i = 0; i < m_readLength; i++)
-            m_data[i] = text.characterAt(i);
-    } else {
-        setReadLength(0);
-        m_dataPtr = nullptr;
-    }
 }
 
 Ref<Comment> Comment::create(Document& document, const String& text)
@@ -71,29 +56,4 @@ bool Comment::childTypeAllowed(NodeType) const
     return false;
 }
 
-void Comment::setReadLength(unsigned readLength)
-{
-    m_readLength = std::min(readLength, s_maxDataLength);
-}
-
-unsigned Comment::charCodeAt(unsigned index)
-{
-    if (index < m_readLength)
-        return m_dataPtr[index];
-
-    return 0;
-}
-
-void Comment::clflushReadLength()
-{
-#if CPU(X86_64) && !OS(WINDOWS)
-    auto clflush = [] (void* ptr) {
-        char* ptrToFlush = static_cast<char*>(ptr);
-        asm volatile ("clflush %0" :: "m"(*ptrToFlush) : "memory");
-    };
-
-    clflush(&m_readLength);
-#endif
-}
-
 } // namespace WebCore