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

third_party/WebKit/Source/platform/graphics/CanvasSurfaceLayerBridge.h

 // Copyright 2016 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 CanvasSurfaceLayerBridge_h
 #define CanvasSurfaceLayerBridge_h
 
 #include "base/memory/ref_counted.h"
+#include "cc/surfaces/surface_id.h"
 #include "platform/PlatformExport.h"
+#include "platform/graphics/CanvasSurfaceLayerBridgeClient.h"
 #include "wtf/OwnPtr.h"
 
 namespace cc {
-// TODO(611796): replace SolidColorLayer with SurfaceLayer
-class SolidColorLayer;
-}
+class SurfaceLayer;
+struct SurfaceSequence;
+} // namespace cc
 
 namespace blink {
 
 class WebLayer;
 
 class PLATFORM_EXPORT CanvasSurfaceLayerBridge {
 public:
-    explicit CanvasSurfaceLayerBridge();
-    ~CanvasSurfaceLayerBridge();
+    explicit CanvasSurfaceLayerBridge(PassOwnPtr<CanvasSurfaceLayerBridgeClient>);
+    virtual ~CanvasSurfaceLayerBridge();

[jbroman, 2016/06/16 21:11:48]

I don't think this destructor needs to be virtual, does it?

[xlai (Olivia), 2016/06/16 23:16:21]

Done.

+    bool createSurfaceLayer(int canvasWidth, int canvasHeight);
     WebLayer* getWebLayer() const { return m_webLayer.get(); }
+    const cc::SurfaceId& getSurfaceId() const { return m_surfaceId; }
+    CanvasSurfaceLayerBridgeClient* getClient() const { return m_client.get(); }
+
+    void satisfyCallback(cc::SurfaceSequence);
+    void requireCallback(cc::SurfaceId, cc::SurfaceSequence);
 
 private:
-    scoped_refptr<cc::SolidColorLayer> m_solidColorLayer;
+    scoped_refptr<cc::SurfaceLayer> m_surfaceLayer;
     OwnPtr<WebLayer> m_webLayer;
+    OwnPtr<CanvasSurfaceLayerBridgeClient> m_client;
+    cc::SurfaceId m_surfaceId;
 };
 
-}
+} // namespace blink
 
-#endif // CanvasSurfaceLayerBridge
+#endif // CanvasSurfaceLayerBridge_h