Move gpu_feature_flags from chrome\common to content\browser since it's only ...

chrome/common/gpu_feature_flags.h

-// Copyright (c) 2010 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 CHROME_COMMON_GPU_FEATURE_FLAGS_H__
-#define CHROME_COMMON_GPU_FEATURE_FLAGS_H__
-#pragma once
-
-// Provides flags indicating which gpu features are blacklisted for the system
-// on which chrome is currently running.
-
-#include <string>
-
-#include "base/basictypes.h"
-
-class GpuFeatureFlags {
- public:
-  enum GpuFeatureType {
-    kGpuFeatureAccelerated2dCanvas = 1 << 0,
-    kGpuFeatureAcceleratedCompositing = 1 << 1,
-    kGpuFeatureWebgl = 1 << 2,
-    kGpuFeatureMultisampling = 1 << 3,
-    kGpuFeatureAll = kGpuFeatureAccelerated2dCanvas |
-                     kGpuFeatureAcceleratedCompositing |
-                     kGpuFeatureWebgl |
-                     kGpuFeatureMultisampling,
-    kGpuFeatureUnknown = 0
-  };
-
-  // All flags initialized to false, i.e., no feature is blacklisted.
-  GpuFeatureFlags();
-
-  // flags are OR combination of GpuFeatureType.
-  void set_flags(uint32 flags);
-
-  uint32 flags() const;
-
-  // Resets each flag by OR with the corresponding flag in "other".
-  void Combine(const GpuFeatureFlags& other);
-
-  // Maps string to GpuFeatureType; returns kGpuFeatureUnknown if none of the
-  // following is input (case-sensitive):
-  //   "accelerated_2d_canvas"
-  //   "accelerated_compositing"
-  //   "webgl"
-  //   "multisampling"
-  static GpuFeatureType StringToGpuFeatureType(
-      const std::string& feature_string);
-
- private:
-  static const char kGpuFeatureNameAccelerated2dCanvas[];
-  static const char kGpuFeatureNameAcceleratedCompositing[];
-  static const char kGpuFeatureNameWebgl[];
-  static const char kGpuFeatureNameMultisampling[];
-  static const char kGpuFeatureNameAll[];
-
-  // If a bit is set to 1, corresponding feature is blacklisted.
-  uint32 flags_;
-};
-
-#endif  // CHROME_COMMON_GPU_FEATURE_FLAGS_H__
-