cc: Make OutputSurface::BindToClient pure virtual and not return bool

android_webview/browser/parent_output_surface.cc

 // 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.
 
 #include "android_webview/browser/parent_output_surface.h"
 
 #include "android_webview/browser/aw_render_thread_context_provider.h"
 #include "android_webview/browser/scoped_app_gl_state_restore.h"
 #include "cc/output/output_surface_client.h"
 #include "cc/output/output_surface_frame.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 
 namespace android_webview {
 
 ParentOutputSurface::ParentOutputSurface(
     scoped_refptr<AwRenderThreadContextProvider> context_provider)
     : cc::OutputSurface(std::move(context_provider)) {
 }
 
 ParentOutputSurface::~ParentOutputSurface() {
 }
 
-void ParentOutputSurface::DidLoseOutputSurface() {
-  // Android WebView does not handle context loss.
-  LOG(FATAL) << "Render thread context loss";
-}
+void ParentOutputSurface::BindToClient(cc::OutputSurfaceClient* client) {}
 
 void ParentOutputSurface::EnsureBackbuffer() {}
 
 void ParentOutputSurface::DiscardBackbuffer() {
   context_provider()->ContextGL()->DiscardBackbufferCHROMIUM();
 }
 
 void ParentOutputSurface::BindFramebuffer() {
   context_provider()->ContextGL()->BindFramebuffer(GL_FRAMEBUFFER, 0);
 }
@@ skipping 50 matching lines @@
 
 unsigned ParentOutputSurface::GetOverlayTextureId() const {
   return 0;
 }
 
 bool ParentOutputSurface::SurfaceIsSuspendForRecycle() const {
   return false;
 }
 
 }  // namespace android_webview