Move GPU device/driver info related code from content to gpu.

content/public/common/gpu_performance_stats.h

Index: content/public/common/gpu_performance_stats.h
===================================================================
--- content/public/common/gpu_performance_stats.h	(revision 201645)
+++ content/public/common/gpu_performance_stats.h	(working copy)
@@ -1,23 +0,0 @@
-// 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 CONTENT_PUBLIC_COMMON_PERFORMANCE_STATS_H_
-#define CONTENT_PUBLIC_COMMON_PERFORMANCE_STATS_H_
-
-#include "content/common/content_export.h"
-
-namespace content {
-
-struct CONTENT_EXPORT GpuPerformanceStats {
-  GpuPerformanceStats() : graphics(0.f), gaming(0.f), overall(0.f) {}
-
-  float graphics;
-  float gaming;
-  float overall;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_PUBLIC_COMMON_PERFORMANCE_STATS_H_
-