Reland of: Make OffscreenCanvas Transferable

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

 // 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.
 
 #ifndef ScriptValueSerializer_h
 #define ScriptValueSerializer_h
 
 #include "bindings/core/v8/SerializationTag.h"
 #include "bindings/core/v8/SerializedScriptValue.h"
 #include "bindings/core/v8/V8Binding.h"
@@ skipping 125 matching lines @@
     void writeFileListIndex(const Vector<int>& blobIndices);
     void writeArrayBuffer(const DOMArrayBuffer&);
     void writeArrayBufferView(const DOMArrayBufferView&);
     void doWriteImageData(uint32_t width, uint32_t height, const uint8_t* pixelData, uint32_t pixelDataLength);
     void writeImageData(uint32_t width, uint32_t height, const uint8_t* pixelData, uint32_t pixelDataLength);
     void writeImageBitmap(uint32_t width, uint32_t height, const uint8_t* pixelData, uint32_t pixelDataLength);
     void writeRegExp(v8::Local<v8::String> pattern, v8::RegExp::Flags);
     void writeTransferredMessagePort(uint32_t index);
     void writeTransferredArrayBuffer(uint32_t index);
     void writeTransferredImageBitmap(uint32_t index);
+    void writeTransferredOffscreenCanvas(uint32_t index, uint32_t width, uint32_t height, uint32_t id);
     void writeTransferredSharedArrayBuffer(uint32_t index);
     void writeObjectReference(uint32_t reference);
     void writeObject(uint32_t numProperties);
     void writeSparseArray(uint32_t numProperties, uint32_t length);
     void writeDenseArray(uint32_t numProperties, uint32_t length);
     String takeWireString();
     void writeReferenceCount(uint32_t numberOfReferences);
     void writeGenerateFreshObject();
     void writeGenerateFreshSparseArray(uint32_t length);
     void writeGenerateFreshDenseArray(uint32_t length);
@@ skipping 246 matching lines @@
     StateBase* writeCompositorProxy(v8::Local<v8::Value>, StateBase* next);
     StateBase* writeFile(v8::Local<v8::Value>, StateBase* next);
     StateBase* writeFileList(v8::Local<v8::Value>, StateBase* next);
     void writeImageData(v8::Local<v8::Value>);
     StateBase* writeImageBitmap(v8::Local<v8::Value>, StateBase* next);
     void writeRegExp(v8::Local<v8::Value>);
     StateBase* writeAndGreyArrayBufferView(v8::Local<v8::Object>, StateBase* next);
     StateBase* writeArrayBuffer(v8::Local<v8::Value>, StateBase* next);
     StateBase* writeTransferredArrayBuffer(v8::Local<v8::Value>, uint32_t index, StateBase* next);
     StateBase* writeTransferredImageBitmap(v8::Local<v8::Value>, uint32_t index, StateBase* next);
+    StateBase* writeTransferredOffscreenCanvas(v8::Local<v8::Value>, uint32_t index, StateBase* next);
     StateBase* writeTransferredSharedArrayBuffer(v8::Local<v8::Value>, uint32_t index, StateBase* next);
     static bool shouldSerializeDensely(uint32_t length, uint32_t propertyCount);
 
     StateBase* startArrayState(v8::Local<v8::Array>, StateBase* next);
     StateBase* startObjectState(v8::Local<v8::Object>, StateBase* next);
     StateBase* startMapState(v8::Local<v8::Map>, StateBase* next);
     StateBase* startSetState(v8::Local<v8::Set>, StateBase* next);
 
     bool appendBlobInfo(const String& uuid, const String& type, unsigned long long size, int* index);
     bool appendFileInfo(const File*, int* index);
@@ skipping 16 matching lines @@
     SerializedScriptValueWriter& m_writer;
     v8::TryCatch& m_tryCatch;
     int m_depth;
     Status m_status;
     String m_errorMessage;
     typedef V8ObjectMap<v8::Object, uint32_t> ObjectPool;
     ObjectPool m_objectPool;
     ObjectPool m_transferredMessagePorts;
     ObjectPool m_transferredArrayBuffers;
     ObjectPool m_transferredImageBitmaps;
+    ObjectPool m_transferredOffscreenCanvas;
     uint32_t m_nextObjectReference;
     WebBlobInfoArray* m_blobInfo;
     BlobDataHandleMap& m_blobDataHandles;
 };
 
 // Interface used by SerializedScriptValueReader to create objects of composite types.
 class CORE_EXPORT ScriptValueCompositeCreator {
     STACK_ALLOCATED();
     WTF_MAKE_NONCOPYABLE(ScriptValueCompositeCreator);
 public:
     ScriptValueCompositeCreator() { }
     virtual ~ScriptValueCompositeCreator() { }
 
     virtual bool consumeTopOfStack(v8::Local<v8::Value>*) = 0;
     virtual uint32_t objectReferenceCount() = 0;
     virtual void pushObjectReference(const v8::Local<v8::Value>&) = 0;
     virtual bool tryGetObjectFromObjectReference(uint32_t reference, v8::Local<v8::Value>*) = 0;
     virtual bool tryGetTransferredMessagePort(uint32_t index, v8::Local<v8::Value>*) = 0;
     virtual bool tryGetTransferredArrayBuffer(uint32_t index, v8::Local<v8::Value>*) = 0;
     virtual bool tryGetTransferredImageBitmap(uint32_t index, v8::Local<v8::Value>*) = 0;
     virtual bool tryGetTransferredSharedArrayBuffer(uint32_t index, v8::Local<v8::Value>*) = 0;
+    virtual bool tryGetTransferredOffscreenCanvas(uint32_t index, uint32_t width, uint32_t height, uint32_t id, v8::Local<v8::Value>*) = 0;

[sof, 2016/04/27 05:21:04]

swap up one line so as to consistently sort this group of methods.

     virtual bool newSparseArray(uint32_t length) = 0;
     virtual bool newDenseArray(uint32_t length) = 0;
     virtual bool newMap() = 0;
     virtual bool newSet() = 0;
     virtual bool newObject() = 0;
     virtual bool completeObject(uint32_t numProperties, v8::Local<v8::Value>*) = 0;
     virtual bool completeSparseArray(uint32_t numProperties, uint32_t length, v8::Local<v8::Value>*) = 0;
     virtual bool completeDenseArray(uint32_t numProperties, uint32_t length, v8::Local<v8::Value>*) = 0;
     virtual bool completeMap(uint32_t length, v8::Local<v8::Value>*) = 0;
     virtual bool completeSet(uint32_t length, v8::Local<v8::Value>*) = 0;
@@ skipping 127 matching lines @@
     bool newObject() override;
     bool completeObject(uint32_t numProperties, v8::Local<v8::Value>*) override;
     bool completeSparseArray(uint32_t numProperties, uint32_t length, v8::Local<v8::Value>*) override;
     bool completeDenseArray(uint32_t numProperties, uint32_t length, v8::Local<v8::Value>*) override;
     bool completeMap(uint32_t length, v8::Local<v8::Value>*) override;
     bool completeSet(uint32_t length, v8::Local<v8::Value>*) override;
     void pushObjectReference(const v8::Local<v8::Value>&) override;
     bool tryGetTransferredMessagePort(uint32_t index, v8::Local<v8::Value>*) override;
     bool tryGetTransferredArrayBuffer(uint32_t index, v8::Local<v8::Value>*) override;
     bool tryGetTransferredImageBitmap(uint32_t index, v8::Local<v8::Value>*) override;
+    bool tryGetTransferredOffscreenCanvas(uint32_t index, uint32_t width, uint32_t height, uint32_t id, v8::Local<v8::Value>*) override;
     bool tryGetTransferredSharedArrayBuffer(uint32_t index, v8::Local<v8::Value>*) override;
     bool tryGetObjectFromObjectReference(uint32_t reference, v8::Local<v8::Value>*) override;
     uint32_t objectReferenceCount() override;
 
 protected:
     SerializedScriptValueReader& reader() { return m_reader; }
     virtual bool read(v8::Local<v8::Value>*);
 
 private:
     bool initializeObject(v8::Local<v8::Object>, uint32_t numProperties, v8::Local<v8::Value>*);
@@ skipping 18 matching lines @@
     ArrayBufferContentsArray* m_arrayBufferContents;
     ImageBitmapContentsArray* m_imageBitmapContents;
     Vector<v8::Local<v8::Value>> m_arrayBuffers;
     Vector<v8::Local<v8::Value>> m_imageBitmaps;
     uint32_t m_version;
 };
 
 } // namespace blink
 
 #endif // ScriptValueSerializer_h