Enforce constant size and device scale factor for surfaces

content/browser/renderer_host/delegated_frame_host.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 CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_HOST_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 97 matching lines @@
   // FrameEvictorClient implementation.
   void EvictDelegatedFrame() override;
 
   // cc::CompositorFrameSinkSupportClient implementation.
   void DidReceiveCompositorFrameAck(
       const cc::ReturnedResourceArray& resources) override;
   void OnBeginFrame(const cc::BeginFrameArgs& args) override;
   void ReclaimResources(const cc::ReturnedResourceArray& resources) override;
   void WillDrawSurface(const cc::LocalSurfaceId& id,
                        const gfx::Rect& damage_rect) override;
+  void DidRejectCompositorFrame() override;
 
   // Public interface exposed to RenderWidgetHostView.
 
   void DidCreateNewRendererCompositorFrameSink(
       cc::mojom::MojoCompositorFrameSinkClient* renderer_compositor_frame_sink);
   void SubmitCompositorFrame(const cc::LocalSurfaceId& local_surface_id,
                              cc::CompositorFrame frame);
   void ClearDelegatedFrame();
   void WasHidden();
   void WasShown(const ui::LatencyInfo& latency_info);
@@ skipping 195 matching lines @@
   bool has_frame_ = false;
   cc::mojom::MojoCompositorFrameSinkClient* renderer_compositor_frame_sink_ =
       nullptr;
 
   std::unique_ptr<viz::FrameEvictor> frame_evictor_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_HOST_H_