Added Dartium changes onto 45.0.2454.104

Source/wtf/ArrayBufferContents.h

Index: Source/wtf/ArrayBufferContents.h
diff --git a/Source/wtf/ArrayBufferContents.h b/Source/wtf/ArrayBufferContents.h
index d5b4fc304c7beb60549620322c4e9517f9c22962..cce0609938ebb1d2234b6488fca021e1d8eac8fd 100644
--- a/Source/wtf/ArrayBufferContents.h
+++ b/Source/wtf/ArrayBufferContents.h
@@ -94,8 +94,12 @@ private:
         unsigned sizeInBytes() const { return m_sizeInBytes; }
         bool isShared() const { return m_isShared == Shared; }
 
+        void setAllocated(bool allocate) { m_malloc = allocate; }
+        bool isAllocated() const { return m_malloc; }
+
     private:
         void* m_data;
+        bool m_malloc;
         unsigned m_sizeInBytes;
         SharingType m_isShared;
     };