Establish mojo service between Canvas (blink) and SurfaceManager (browser)

third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 40 matching lines @@
 #include "core/html/canvas/CanvasRenderingContextFactory.h"
 #include "core/imagebitmap/ImageBitmapOptions.h"
 #include "core/layout/LayoutHTMLCanvas.h"
 #include "core/paint/PaintLayer.h"
 #include "core/paint/PaintTiming.h"
 #include "platform/Histogram.h"
 #include "platform/MIMETypeRegistry.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/graphics/Canvas2DImageBufferSurface.h"
 #include "platform/graphics/CanvasMetrics.h"
+#include "platform/graphics/CanvasSurfaceLayerBridgeClientImpl.h"
 #include "platform/graphics/ExpensiveCanvasHeuristicParameters.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "platform/graphics/RecordingImageBufferSurface.h"
 #include "platform/graphics/StaticBitmapImage.h"
 #include "platform/graphics/UnacceleratedImageBufferSurface.h"
 #include "platform/graphics/gpu/AcceleratedImageBufferSurface.h"
 #include "platform/transforms/AffineTransform.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebTraceLocation.h"
 #include "wtf/CheckedNumeric.h"
@@ skipping 1106 matching lines @@
     return std::make_pair(nullptr, String());
 }
 
 String HTMLCanvasElement::getIdFromControl(const Element* element)
 {
     if (m_context)
         return m_context->getIdFromControl(element);
     return String();
 }
 
-void HTMLCanvasElement::createSurfaceLayerBridge()
+bool HTMLCanvasElement::createSurfaceLayer()
 {
-    m_surfaceLayerBridge = wrapUnique(new CanvasSurfaceLayerBridge());
+    DCHECK(!m_surfaceLayerBridge);
+    std::unique_ptr<CanvasSurfaceLayerBridgeClient> bridgeClient = wrapUnique(new CanvasSurfaceLayerBridgeClientImpl());
+    m_surfaceLayerBridge = wrapUnique(new CanvasSurfaceLayerBridge(std::move(bridgeClient)));
+    return m_surfaceLayerBridge->createSurfaceLayer(this->width(), this->height());
 }
 
 } // namespace blink