Remove MojoCompositorFrameSink::WillDrawSurface

services/ui/ws/display_client_compositor_frame_sink.cc

 // Copyright 2017 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.
 
 #include "services/ui/ws/display_client_compositor_frame_sink.h"
 
 #include "base/threading/thread_checker.h"
 #include "cc/output/compositor_frame_sink_client.h"
 
 namespace ui {
@@ skipping 70 matching lines @@
 }
 
 void DisplayClientCompositorFrameSink::ReclaimResources(
     const cc::ReturnedResourceArray& resources) {
   DCHECK(thread_checker_->CalledOnValidThread());
   if (!client_)
     return;
   client_->ReclaimResources(resources);
 }
 
-void DisplayClientCompositorFrameSink::WillDrawSurface(
-    const cc::LocalSurfaceId& local_surface_id,
-    const gfx::Rect& damage_rect) {
-  // TODO(fsamuel, staraz): Implement this.
-}
-
 void DisplayClientCompositorFrameSink::OnNeedsBeginFrames(
     bool needs_begin_frames) {
   DCHECK(thread_checker_->CalledOnValidThread());
   compositor_frame_sink_->SetNeedsBeginFrame(needs_begin_frames);
 }
 
 void DisplayClientCompositorFrameSink::OnDidFinishFrame(
     const cc::BeginFrameAck& ack) {
   // If there was damage, the submitted CompositorFrame includes the ack.
   if (!ack.has_damage)
     compositor_frame_sink_->BeginFrameDidNotSwap(ack);
 }
 
 }  // namespace ws
 }  // namespace ui