Refactor client visibility handling

android_webview/browser/aw_render_thread_context_provider.h

 // Copyright 2015 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 ANDROID_WEBVIEW_BROWSER_AW_RENDER_THREAD_CONTEXT_PROVIDER_H_
 #define ANDROID_WEBVIEW_BROWSER_AW_RENDER_THREAD_CONTEXT_PROVIDER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 30 matching lines @@
       scoped_refptr<gl::GLSurface> surface,
       scoped_refptr<gpu::InProcessCommandBuffer::Service> service);
   ~AwRenderThreadContextProvider() override;
 
   // cc::ContextProvider:
   bool BindToCurrentThread() override;
   gpu::Capabilities ContextCapabilities() override;
   gpu::gles2::GLES2Interface* ContextGL() override;
   gpu::ContextSupport* ContextSupport() override;
   class GrContext* GrContext() override;
+  cc::ContextCacheController* CacheController() override;
   void InvalidateGrContext(uint32_t state) override;
   base::Lock* GetLock() override;
-  void DeleteCachedResources() override;
   void SetLostContextCallback(
       const LostContextCallback& lost_context_callback) override;
 
   void OnLostContext();
 
   base::ThreadChecker main_thread_checker_;
 
   std::unique_ptr<gpu::GLInProcessContext> context_;
   sk_sp<class GrContext> gr_context_;
+  std::unique_ptr<cc::ContextCacheController> cache_controller_;
 
   LostContextCallback lost_context_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(AwRenderThreadContextProvider);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_AW_RENDER_THREAD_CONTEXT_PROVIDER_H_