Revert of Pass initial size and GPU preference via context attributes

components/mus/public/cpp/lib/gles2_context.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/public/cpp/gles2_context.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <utility>
@@ skipping 36 matching lines @@
   } else {
     scoped_refptr<gpu::GpuChannelHost> gpu_channel_host =
         GpuService::GetInstance()->EstablishGpuChannelSync();
     if (!gpu_channel_host)
       return false;
     gpu::SurfaceHandle surface_handle = gfx::kNullAcceleratedWidget;
     // TODO(penghuang): support shared group.
     gpu::CommandBufferProxyImpl* shared_command_buffer = nullptr;
     gpu::GpuStreamId stream_id = gpu::GpuStreamId::GPU_STREAM_DEFAULT;
     gpu::GpuStreamPriority stream_priority = gpu::GpuStreamPriority::NORMAL;
+    gl::GpuPreference gpu_preference = gl::PreferIntegratedGpu;
     gpu::gles2::ContextCreationAttribHelper attributes;
     // TODO(penghuang): figure a useful active_url.
     GURL active_url;
     scoped_refptr<base::SingleThreadTaskRunner> task_runner =
         base::ThreadTaskRunnerHandle::Get();
     if (!attributes.Parse(attribs))
       return false;
     command_buffer_proxy_impl_ = gpu::CommandBufferProxyImpl::Create(
-        std::move(gpu_channel_host), surface_handle, shared_command_buffer,
-        stream_id, stream_priority, attributes, active_url,
-        std::move(task_runner));
+        std::move(gpu_channel_host), surface_handle, gfx::Size(),
+        shared_command_buffer, stream_id, stream_priority, attributes,
+        active_url, gpu_preference, std::move(task_runner));
     if (!command_buffer_proxy_impl_)
       return false;
     command_buffer = command_buffer_proxy_impl_.get();
     gpu_control = command_buffer_proxy_impl_.get();
   }
 
   constexpr gpu::SharedMemoryLimits default_limits;
   gles2_helper_.reset(new gpu::gles2::GLES2CmdHelper(command_buffer));
   if (!gles2_helper_->Initialize(default_limits.command_buffer_size))
     return false;
@@ skipping 22 matching lines @@
 std::unique_ptr<GLES2Context> GLES2Context::CreateOffscreenContext(
     const std::vector<int32_t>& attribs,
     shell::Connector* connector) {
   std::unique_ptr<GLES2Context> gles2_context(new GLES2Context);
   if (!gles2_context->Initialize(attribs, connector))
     gles2_context.reset();
   return gles2_context;
 }
 
 }  // namespace mus