V8ScriptValueSerializer: Use PartitionAlloc for the buffer, and avoid copying it into a String.

third_party/WebKit/Source/bindings/core/v8/ScriptValueSerializer.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "bindings/core/v8/ScriptValueSerializer.h"
 
 #include "bindings/core/v8/Transferables.h"
 #include "bindings/core/v8/V8ArrayBuffer.h"
 #include "bindings/core/v8/V8ArrayBufferView.h"
 #include "bindings/core/v8/V8Blob.h"
@@ skipping 793 matching lines @@
   }
 
   return serializedValue.release();
 }
 
 void ScriptValueSerializer::transferData(
     Transferables* transferables,
     ExceptionState& exceptionState,
     SerializedScriptValue* serializedValue) {
   serializedValue->setData(m_writer.takeWireString());
-  DCHECK(serializedValue->data().impl()->hasOneRef());
+  DCHECK(serializedValue->dataHasOneRef());
   if (!transferables)
     return;
 
   serializedValue->transferImageBitmaps(isolate(), transferables->imageBitmaps,
                                         exceptionState);
   if (exceptionState.hadException())
     return;
   serializedValue->transferArrayBuffers(isolate(), transferables->arrayBuffers,
                                         exceptionState);
   if (exceptionState.hadException())
@@ skipping 1851 matching lines @@
       m_openCompositeReferenceStack[m_openCompositeReferenceStack.size() - 1];
   m_openCompositeReferenceStack.shrink(m_openCompositeReferenceStack.size() -
                                        1);
   if (objectReference >= m_objectPool.size())
     return false;
   *object = m_objectPool[objectReference];
   return true;
 }
 
 }  // namespace blink