Revert of Pass initial size and GPU preference via context attributes

components/mus/surfaces/surfaces_context_provider.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 "components/mus/surfaces/surfaces_context_provider.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 41 matching lines @@
     gpu::GpuStreamId stream_id = gpu::GpuStreamId::GPU_STREAM_DEFAULT;
     gpu::GpuStreamPriority stream_priority = gpu::GpuStreamPriority::NORMAL;
     gpu::gles2::ContextCreationAttribHelper attributes;
     attributes.alpha_size = -1;
     attributes.depth_size = 0;
     attributes.stencil_size = 0;
     attributes.samples = 0;
     attributes.sample_buffers = 0;
     attributes.bind_generates_resource = false;
     attributes.lose_context_when_out_of_memory = true;
+    gl::GpuPreference gpu_preference = gl::PreferIntegratedGpu;
     GURL active_url;
     scoped_refptr<base::SingleThreadTaskRunner> task_runner =
         base::ThreadTaskRunnerHandle::Get();
     command_buffer_proxy_impl_ = gpu::CommandBufferProxyImpl::Create(
-        service->gpu_channel_local(), widget, shared_command_buffer, stream_id,
-        stream_priority, attributes, active_url, task_runner);
+        service->gpu_channel_local(), widget, gfx::Size(),
+        shared_command_buffer, stream_id, stream_priority, attributes,
+        active_url, gpu_preference, task_runner);
     command_buffer_proxy_impl_->SetSwapBuffersCompletionCallback(
         base::Bind(&SurfacesContextProvider::OnGpuSwapBuffersCompleted,
                    base::Unretained(this)));
     command_buffer_proxy_impl_->SetUpdateVSyncParametersCallback(
         base::Bind(&SurfacesContextProvider::OnUpdateVSyncParameters,
                    base::Unretained(this)));
   }
 }
 
 void SurfacesContextProvider::SetDelegate(
@@ skipping 119 matching lines @@
   if (delegate_)
     delegate_->OnVSyncParametersUpdated(timebase, interval);
 }
 
 void SurfacesContextProvider::SetSwapBuffersCompletionCallback(
     gl::GLSurface::SwapCompletionCallback callback) {
   swap_buffers_completion_callback_ = callback;
 }
 
 }  // namespace mus