Make lost context and error message callbacks on GpuControl go to client

gpu/command_buffer/client/gl_in_process_context.h

 // Copyright (c) 2012 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 GPU_COMMAND_BUFFER_CLIENT_GL_IN_PROCESS_CONTEXT_H_
 #define GPU_COMMAND_BUFFER_CLIENT_GL_IN_PROCESS_CONTEXT_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 50 matching lines @@
       bool is_offscreen,
       gfx::AcceleratedWidget window,
       const gfx::Size& size,
       GLInProcessContext* share_context,
       const gpu::gles2::ContextCreationAttribHelper& attribs,
       gfx::GpuPreference gpu_preference,
       const GLInProcessContextSharedMemoryLimits& memory_limits,
       GpuMemoryBufferManager* gpu_memory_buffer_manager,
       ImageFactory* image_factory);
 
-  virtual void SetContextLostCallback(const base::Closure& callback) = 0;
-
   // Allows direct access to the GLES2 implementation so a GLInProcessContext
   // can be used without making it current.
   virtual gles2::GLES2Implementation* GetImplementation() = 0;
 
   virtual size_t GetMappedMemoryLimit() = 0;
 
   virtual void SetLock(base::Lock* lock) = 0;
 
 #if defined(OS_ANDROID)
   virtual scoped_refptr<gfx::SurfaceTexture> GetSurfaceTexture(
       uint32_t stream_id) = 0;
   virtual uint32_t CreateStreamTexture(uint32_t texture_id) = 0;
 #endif
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GL_IN_PROCESS_CONTEXT_H_