Use GpuPreferences to avoid directly accessing switches in gpu related code

gpu/command_buffer/tests/gl_manager.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_TESTS_GL_MANAGER_H_
 #define GPU_COMMAND_BUFFER_TESTS_GL_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "gpu/command_buffer/client/gpu_control.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/feature_info.h"
+#include "gpu/command_buffer/service/gpu_preferences.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 
 namespace base {
 class CommandLine;
 }
 
 namespace gfx {
 
 class GLContext;
@@ skipping 117 matching lines @@
 
  private:
   void PumpCommands();
   bool GetBufferChanged(int32_t transfer_buffer_id);
   void SetupBaseContext();
   void OnFenceSyncRelease(uint64_t release);
   bool OnWaitFenceSync(gpu::CommandBufferNamespace namespace_id,
                        gpu::CommandBufferId command_buffer_id,
                        uint64_t release);
 
+  gpu::GpuPreferences gpu_preferences_;
+
   SyncPointManager* sync_point_manager_;  // Non-owning.
 
   scoped_refptr<SyncPointOrderData> sync_point_order_data_;
   scoped_ptr<SyncPointClient> sync_point_client_;
   scoped_refptr<gles2::MailboxManager> mailbox_manager_;
   scoped_refptr<gfx::GLShareGroup> share_group_;
   scoped_ptr<CommandBufferService> command_buffer_;
   scoped_ptr<gles2::GLES2Decoder> decoder_;
   scoped_ptr<GpuScheduler> gpu_scheduler_;
   scoped_refptr<gfx::GLSurface> surface_;
@@ skipping 11 matching lines @@
   // Used on Android to virtualize GL for all contexts.
   static int use_count_;
   static scoped_refptr<gfx::GLShareGroup>* base_share_group_;
   static scoped_refptr<gfx::GLSurface>* base_surface_;
   static scoped_refptr<gfx::GLContext>* base_context_;
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_TESTS_GL_MANAGER_H_