Revert of cc: Implement shared worker contexts.

ui/compositor/test/in_process_context_provider.h

 // Copyright (c) 2013 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 UI_COMPOSITOR_TEST_IN_PROCESS_CONTEXT_PROVIDER_H_
 #define UI_COMPOSITOR_TEST_IN_PROCESS_CONTEXT_PROVIDER_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 20 matching lines @@
       gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
       gpu::ImageFactory* image_factory,
       gfx::AcceleratedWidget window,
       const std::string& debug_name);
 
   // Uses default attributes for creating an offscreen context.
   static scoped_refptr<InProcessContextProvider> CreateOffscreen(
       gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
       gpu::ImageFactory* image_factory);
 
+ private:
+  InProcessContextProvider(
+      const gpu::gles2::ContextCreationAttribHelper& attribs,
+      gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
+      gpu::ImageFactory* image_factory,
+      gfx::AcceleratedWidget window,
+      const std::string& debug_name);
+  ~InProcessContextProvider() override;
+
   // cc::ContextProvider:
   bool BindToCurrentThread() override;
   void DetachFromThread() override;
   Capabilities ContextCapabilities() override;
   gpu::gles2::GLES2Interface* ContextGL() override;
   gpu::ContextSupport* ContextSupport() override;
   class GrContext* GrContext() override;
   void InvalidateGrContext(uint32_t state) override;
   void SetupLock() override;
   base::Lock* GetLock() override;
   void VerifyContexts() override;
   void DeleteCachedResources() override;
   bool DestroyedOnMainThread() override;
   void SetLostContextCallback(
       const LostContextCallback& lost_context_callback) override;
   void SetMemoryPolicyChangedCallback(
       const MemoryPolicyChangedCallback& memory_policy_changed_callback)
       override;
 
- private:
-  InProcessContextProvider(
-      const gpu::gles2::ContextCreationAttribHelper& attribs,
-      gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
-      gpu::ImageFactory* image_factory,
-      gfx::AcceleratedWidget window,
-      const std::string& debug_name);
-  ~InProcessContextProvider() override;
-
   void OnLostContext();
 
   base::ThreadChecker main_thread_checker_;
   base::ThreadChecker context_thread_checker_;
 
   scoped_ptr<gpu::GLInProcessContext> context_;
   skia::RefPtr<class GrContext> gr_context_;
 
   gpu::gles2::ContextCreationAttribHelper attribs_;
   gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_;
   gpu::ImageFactory* image_factory_;
   gfx::AcceleratedWidget window_;
   std::string debug_name_;
   cc::ContextProvider::Capabilities capabilities_;
 
   LostContextCallback lost_context_callback_;
 
   base::Lock destroyed_lock_;
   bool destroyed_;
 
   base::Lock context_lock_;
 
   DISALLOW_COPY_AND_ASSIGN(InProcessContextProvider);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_TEST_IN_PROCESS_CONTEXT_PROVIDER_H_