Add a user pref in Settings to disable all GPU features.

chrome/browser/browser_process_impl.cc

 // 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.
 
 #include "chrome/browser/browser_process_impl.h"
 
 #include <algorithm>
 #include <map>
 #include <set>
 #include <vector>
@@ skipping 17 matching lines @@
 #include "chrome/browser/component_updater/component_updater_configurator.h"
 #include "chrome/browser/component_updater/component_updater_service.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/devtools/remote_debugging_server.h"
 #include "chrome/browser/download/download_request_limiter.h"
 #include "chrome/browser/download/download_status_updater.h"
 #include "chrome/browser/extensions/event_router_forwarder.h"
 #include "chrome/browser/extensions/extension_renderer_state.h"
 #include "chrome/browser/first_run/upgrade_util.h"
 #include "chrome/browser/gpu/gl_string_manager.h"
+#include "chrome/browser/gpu/gpu_mode_manager.h"
 #include "chrome/browser/icon_manager.h"
 #include "chrome/browser/idle.h"
 #include "chrome/browser/intranet_redirect_detector.h"
 #include "chrome/browser/io_thread.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/media_galleries/media_file_system_registry.h"
 #include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/browser/metrics/thread_watcher.h"
 #include "chrome/browser/metrics/variations/variations_service.h"
 #include "chrome/browser/net/chrome_net_log.h"
@@ skipping 451 matching lines @@
   return icon_manager_.get();
 }
 
 GLStringManager* BrowserProcessImpl::gl_string_manager() {
   DCHECK(CalledOnValidThread());
   if (!gl_string_manager_.get())
     gl_string_manager_.reset(new GLStringManager());
   return gl_string_manager_.get();
 }
 
+GpuModeManager* BrowserProcessImpl::gpu_mode_manager() {
+  DCHECK(CalledOnValidThread());
+  if (!gpu_mode_manager_.get())
+    gpu_mode_manager_.reset(new GpuModeManager());
+  return gpu_mode_manager_.get();
+}
+
 RenderWidgetSnapshotTaker* BrowserProcessImpl::GetRenderWidgetSnapshotTaker() {
   return render_widget_snapshot_taker_.get();
 }
 
 AutomationProviderList* BrowserProcessImpl::GetAutomationProviderList() {
   DCHECK(CalledOnValidThread());
 #if defined(ENABLE_AUTOMATION)
   if (automation_provider_list_.get() == NULL)
     automation_provider_list_.reset(new AutomationProviderList());
   return automation_provider_list_.get();
@@ skipping 510 matching lines @@
 }
 
 void BrowserProcessImpl::OnAutoupdateTimer() {
   if (CanAutorestartForUpdate()) {
     DLOG(WARNING) << "Detected update.  Restarting browser.";
     RestartBackgroundInstance();
   }
 }
 
 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)