Remove MojoCompositorFrameSink::WillDrawSurface

components/exo/compositor_frame_sink_holder.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 COMPONENTS_EXO_COMPOSITOR_FRAME_SINK_HOLDER_H_
 #define COMPONENTS_EXO_COMPOSITOR_FRAME_SINK_HOLDER_H_
 
 #include <list>
 #include <map>
 #include <memory>
@@ skipping 30 matching lines @@
   CompositorFrameSink* GetCompositorFrameSink() { return frame_sink_.get(); }
 
   base::WeakPtr<CompositorFrameSinkHolder> GetWeakPtr() {
     return weak_factory_.GetWeakPtr();
   }
 
   // Overridden from cc::mojom::MojoCompositorFrameSinkClient:
   void DidReceiveCompositorFrameAck() override;
   void OnBeginFrame(const cc::BeginFrameArgs& args) override;
   void ReclaimResources(const cc::ReturnedResourceArray& resources) override;
-  void WillDrawSurface(const cc::LocalSurfaceId& local_surface_id,

[Fady Samuel, 2017/04/07 14:43:12]

Can't delete this I think.

[Alex Z., 2017/04/07 14:51:04]

It's the one in exo::CompositorFrameSink that I shouldn't have 
deleted.
It's fixed in the next patch.

-                       const gfx::Rect& damage_rect) override;
 
   // Overridden from cc::ExternalBeginFrameSourceClient:
   void OnNeedsBeginFrames(bool needs_begin_frames) override;
   void OnDidFinishFrame(const cc::BeginFrameAck& ack) override;
 
   // Overridden from SurfaceObserver:
   void OnSurfaceDestroying(Surface* surface) override;
 
  private:
   friend class base::RefCounted<CompositorFrameSinkHolder>;
 
   ~CompositorFrameSinkHolder() override;
 
   // A collection of callbacks used to release resources.
   using ResourceReleaseCallbackMap = std::map<int, cc::ReleaseCallback>;
   ResourceReleaseCallbackMap release_callbacks_;
 
   Surface* surface_;
   std::unique_ptr<CompositorFrameSink> frame_sink_;
   std::unique_ptr<cc::ExternalBeginFrameSource> begin_frame_source_;
 
   base::WeakPtrFactory<CompositorFrameSinkHolder> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CompositorFrameSinkHolder);
 };
 
 }  // namespace exo
 
 #endif  // COMPONENTS_EXO_COMPOSITOR_FRAME_SINK_HOLDER_H_