Make Satisfy/Require callbacks pass Surface id and sequence by reference

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"
@@ skipping 11 matching lines @@
 
 class PLATFORM_EXPORT CanvasSurfaceLayerBridge {
 public:
     explicit CanvasSurfaceLayerBridge(std::unique_ptr<CanvasSurfaceLayerBridgeClient>);
     ~CanvasSurfaceLayerBridge();
     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);
+    void satisfyCallback(const cc::SurfaceSequence&);
+    void requireCallback(const cc::SurfaceId&, const cc::SurfaceSequence&);
 
 private:
     scoped_refptr<cc::SurfaceLayer> m_surfaceLayer;
     std::unique_ptr<WebLayer> m_webLayer;
     std::unique_ptr<CanvasSurfaceLayerBridgeClient> m_client;
     cc::SurfaceId m_surfaceId;
 };
 
 } // namespace blink
 
 #endif // CanvasSurfaceLayerBridge_h