Add timer to OffscreenCanvas's commit API

third_party/WebKit/Source/platform/graphics/OffscreenCanvasFrameDispatcherImpl.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 OffscreenCanvasFrameDispatcherImpl_h
 #define OffscreenCanvasFrameDispatcherImpl_h
 
 #include "cc/ipc/mojo_compositor_frame_sink.mojom-blink.h"
 #include "cc/resources/shared_bitmap.h"
 #include "cc/surfaces/surface_id.h"
@@ skipping 13 matching lines @@
   OffscreenCanvasFrameDispatcherImpl(uint32_t clientId,
                                      uint32_t sinkId,
                                      uint32_t localId,
                                      uint64_t nonce,
                                      int width,
                                      int height);
 
   // OffscreenCanvasFrameDispatcher implementation.
   ~OffscreenCanvasFrameDispatcherImpl() override {}
   void dispatchFrame(RefPtr<StaticBitmapImage>,
+                     double commitStartTime,
                      bool isWebGLSoftwareRendering = false) override;
 
   // cc::mojom::blink::MojoCompositorFrameSinkClient implementation.
   void ReturnResources(const cc::ReturnedResourceArray& resources) override;
 
   // This enum is used in histogram, so it should be append-only.
   enum OffscreenCanvasCommitType {
     CommitGPUCanvasGPUCompositing = 0,
     CommitGPUCanvasSoftwareCompositing = 1,
     CommitSoftwareCanvasGPUCompositing = 2,
@@ skipping 20 matching lines @@
                                              RefPtr<StaticBitmapImage>);
   void setTransferableResourceToSharedGPUContext(cc::TransferableResource&,
                                                  RefPtr<StaticBitmapImage>);
   void setTransferableResourceToStaticBitmapImage(cc::TransferableResource&,
                                                   RefPtr<StaticBitmapImage>);
 };
 
 }  // namespace blink
 
 #endif  // OffscreenCanvasFrameDispatcherImpl_h