compositor-worker: plumb element id and mutable properties

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 "config.h"
 #include "bindings/core/v8/ScriptValueSerializer.h"
 
 #include "bindings/core/v8/V8ArrayBuffer.h"
 #include "bindings/core/v8/V8ArrayBufferView.h"
 #include "bindings/core/v8/V8Blob.h"
@@ skipping 190 matching lines @@
 {
     ASSERT(blobIndex >= 0);
     append(BlobIndexTag);
     doWriteUint32(blobIndex);
 }
 
 void SerializedScriptValueWriter::writeCompositorProxy(const CompositorProxy& compositorProxy)
 {
     append(CompositorProxyTag);
     doWriteUint64(compositorProxy.elementId());
-    doWriteUint32(compositorProxy.bitfieldsSupported());
+    doWriteUint32(compositorProxy.mutableProperties());

[chrishtr, 2015/11/24 16:22:50]

Why mutable?

[Ian Vollick, 2015/11/25 18:28:44]

Actually, this got missed in my rename. It should have been
compositorMutableProperties. I.e., it's compositor-mutable; a property that can
be mutated by the compositor. On the cc side we have the concept of a "mutator"
that gets a crack at updating the compositor's state each impl frame and these
are the properties that one of those mutators may update.

 }
 
 void SerializedScriptValueWriter::writeFile(const File& file)
 {
     append(FileTag);
     doWriteFile(file);
 }
 
 void SerializedScriptValueWriter::writeFileIndex(int blobIndex)
 {
@@ skipping 1935 matching lines @@
         return false;
     uint32_t objectReference = 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