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

chrome/browser/prefs/browser_prefs.cc

 // Copyright 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/prefs/browser_prefs.h"
 
 #include "apps/prefs.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/about_flags.h"
@@ skipping 15 matching lines @@
 #include "chrome/browser/extensions/api/tabs/tabs_api.h"
 #include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_web_ui.h"
 #include "chrome/browser/external_protocol/external_protocol_handler.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/geolocation/geolocation_prefs.h"
 #include "chrome/browser/google/google_url_tracker.h"
 #include "chrome/browser/google/google_url_tracker_factory.h"
 #include "chrome/browser/gpu/gl_string_manager.h"
+#include "chrome/browser/gpu/gpu_mode_manager.h"
 #include "chrome/browser/intranet_redirect_detector.h"
 #include "chrome/browser/io_thread.h"
 #include "chrome/browser/managed_mode/managed_mode.h"
 #include "chrome/browser/managed_mode/managed_user_service.h"
 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
 #include "chrome/browser/media/media_stream_devices_controller.h"
 #include "chrome/browser/metrics/metrics_log.h"
 #include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/browser/metrics/variations/variations_service.h"
 #include "chrome/browser/net/http_server_properties_manager.h"
@@ skipping 130 matching lines @@
   // Please keep this list alphabetized.
   AppListService::RegisterPrefs(registry);
   apps::RegisterPrefs(registry);
   browser_shutdown::RegisterPrefs(registry);
   BrowserProcessImpl::RegisterPrefs(registry);
   chrome::RegisterScreenshotPrefs(registry);
   ExternalProtocolHandler::RegisterPrefs(registry);
   FlagsUI::RegisterPrefs(registry);
   geolocation::RegisterPrefs(registry);
   GLStringManager::RegisterPrefs(registry);
+  GpuModeManager::RegisterPrefs(registry);
   IntranetRedirectDetector::RegisterPrefs(registry);
   IOThread::RegisterPrefs(registry);
   KeywordEditorController::RegisterPrefs(registry);
   MetricsLog::RegisterPrefs(registry);
   MetricsService::RegisterPrefs(registry);
   PrefProxyConfigTrackerImpl::RegisterPrefs(registry);
   ProfileInfoCache::RegisterPrefs(registry);
   ProfileManager::RegisterPrefs(registry);
   PromoResourceService::RegisterPrefs(registry);
   RegisterPrefsForRecoveryComponent(registry);
@@ skipping 237 matching lines @@
     }
     local_state->ClearPref(prefs::kLastPromptedGoogleURL);
 
     current_version |= GOOGLE_URL_TRACKER_PREFS;
     local_state->SetInteger(prefs::kMultipleProfilePrefMigration,
                             current_version);
   }
 }
 
 }  // namespace chrome