Pass initial size and GPU preference via context attributes

gpu/ipc/client/command_buffer_proxy_impl.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_IPC_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_
 #define GPU_IPC_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 67 matching lines @@
     virtual ~DeletionObserver() {}
   };
 
   typedef base::Callback<void(const std::string& msg, int id)>
       GpuConsoleMessageCallback;
 
   // Create and connect to a command buffer in the GPU process.
   static std::unique_ptr<CommandBufferProxyImpl> Create(
       scoped_refptr<GpuChannelHost> host,
       gpu::SurfaceHandle surface_handle,
-      const gfx::Size& size,
       CommandBufferProxyImpl* share_group,
       int32_t stream_id,
       gpu::GpuStreamPriority stream_priority,
       const gpu::gles2::ContextCreationAttribHelper& attribs,
       const GURL& active_url,
-      gl::GpuPreference gpu_preference,
       scoped_refptr<base::SingleThreadTaskRunner> task_runner);
   ~CommandBufferProxyImpl() override;
 
   // IPC::Listener implementation:
   bool OnMessageReceived(const IPC::Message& message) override;
   void OnChannelError() override;
 
   // CommandBuffer implementation:
   State GetLastState() override;
   int32_t GetLastToken() override;
@@ skipping 207 matching lines @@
 
   base::WeakPtr<CommandBufferProxyImpl> weak_this_;
   scoped_refptr<base::SequencedTaskRunner> callback_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(CommandBufferProxyImpl);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_IPC_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_