Blacklist bad GPU drivers: currenly we disable all gpu related features if th...

chrome/common/gpu_feature_flags.h

Index: chrome/common/gpu_feature_flags.h
===================================================================
--- chrome/common/gpu_feature_flags.h	(revision 0)
+++ chrome/common/gpu_feature_flags.h	(revision 0)
@@ -0,0 +1,58 @@
+// 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>
+
+class GpuFeatureFlags {
+ public:
+  enum GpuFeatureType {
+    kGpuFeatureAccelerated2dCanvas,
+    kGpuFeatureAcceleratedCompositing,
+    kGpuFeatureWebgl,
+    kGpuFeatureAny,
+    kGpuFeatureUnknown
+  };
+
+  // All flags initialized to false, i.e., no feature is blacklisted.
+  GpuFeatureFlags();
+
+  bool is_accelerated_2d_canvas_blacklisted() const;
+  bool is_accelerated_compositing_blacklisted() const;
+  bool is_webgl_blacklisted() const;
+
+  void SetFlags(bool is_accelerated_2d_canvas_blacklisted,
+                bool is_accelerated_compositing_blacklisted,
+                bool is_webgl_blacklisted);
+
+  // 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"
+  //   "any"
+  static GpuFeatureType StringToGpuFeatureType(
+      const std::string& feature_string);
+
+ private:
+  static const char kGpuFeatureNameAccelerated2dCanvas[];
+  static const char kGpuFeatureNameAcceleratedCompositing[];
+  static const char kGpuFeatureNameWebgl[];
+  static const char kGpuFeatureNameAny[];
+
+  bool is_accelerated_2d_canvas_blacklisted_;
+  bool is_accelerated_compositing_blacklisted_;
+  bool is_webgl_blacklisted_;
+};
+
+#endif  // CHROME_COMMON_GPU_FEATURE_FLAGS_H__