Removing a bunch of unused platform code.

Source/WTF/wtf/text/StringImpl.h

Index: Source/WTF/wtf/text/StringImpl.h
diff --git a/Source/WTF/wtf/text/StringImpl.h b/Source/WTF/wtf/text/StringImpl.h
index fb4a6708835b7cdb69741d30bae88638822ab334..cd95184beab305d19c4a1100c735f77c363ec81b 100644
--- a/Source/WTF/wtf/text/StringImpl.h
+++ b/Source/WTF/wtf/text/StringImpl.h
@@ -31,10 +31,6 @@
 #include <wtf/Vector.h>
 #include <wtf/unicode/Unicode.h>
 
-#if PLATFORM(QT)
-#include <QString>
-#endif
-
 #if USE(CF)
 typedef const struct __CFString * CFStringRef;
 #endif
@@ -153,9 +149,6 @@ private:
         BufferInternal,
         BufferOwned,
         BufferSubstring,
-#if PLATFORM(QT)
-        BufferAdoptedQString
-#endif
         // NOTE: Adding more ownership types needs to extend m_hashAndFlags as we're at capacity
     };
 
@@ -322,32 +315,6 @@ private:
 
         STRING_STATS_ADD_16BIT_STRING(m_length);
     }
-
-#if PLATFORM(QT)
-    // Used to create new strings that adopt an existing QString's data
-    enum ConstructAdoptedQStringTag { ConstructAdoptedQString };
-    StringImpl(QStringData* qStringData, ConstructAdoptedQStringTag)
-        : m_refCount(s_refCountIncrement)
-        , m_length(qStringData->size)
-        , m_data16(0)
-        , m_qStringData(qStringData)
-        , m_hashAndFlags(BufferAdoptedQString)
-    {
-        ASSERT(m_length);
-
-        // We ref the string-data to ensure it will be valid for the lifetime of
-        // this string. We then deref it in the destructor, so that the string
-        // data can eventually be freed.
-        m_qStringData->ref.ref();
-
-        // Now that we have a ref we can safely reference the string data
-        m_data16 = reinterpret_cast_ptr<const UChar*>(qStringData->data());
-        ASSERT(m_data16);
-
-        STRING_STATS_ADD_16BIT_STRING(m_length);
-    }
-#endif
-
 public:
     WTF_EXPORT_STRING_API ~StringImpl();
 
@@ -459,10 +426,6 @@ public:
     WTF_EXPORT_STRING_API static PassRefPtr<StringImpl> adopt(StringBuffer<UChar>&);
     WTF_EXPORT_STRING_API static PassRefPtr<StringImpl> adopt(StringBuffer<LChar>&);
 
-#if PLATFORM(QT)
-    static PassRefPtr<StringImpl> adopt(QStringData*);
-#endif
-
     unsigned length() const { return m_length; }
     bool is8Bit() const { return m_hashAndFlags & s_hashFlag8BitBuffer; }
     bool hasInternalBuffer() const { return bufferOwnership() == BufferInternal; }
@@ -531,10 +494,6 @@ public:
     bool isSubString() const { return  bufferOwnership() == BufferSubstring; }
 #endif
 
-#if PLATFORM(QT)
-    QStringData* qStringData() { return bufferOwnership() == BufferAdoptedQString ? m_qStringData : 0; }
-#endif
-
 private:
     // The high bits of 'hash' are always empty, but we prefer to store our flags
     // in the low bits because it makes them slightly more efficient to access.
@@ -809,9 +768,6 @@ private:
         void* m_buffer;
         StringImpl* m_substringBuffer;
         mutable UChar* m_copyData16;
-#if PLATFORM(QT)
-        QStringData* m_qStringData;
-#endif
     };
     mutable unsigned m_hashAndFlags;
 };