Add new extension APIs related to animation policy.

chrome/browser/extensions/api/preference/preference_api.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/extensions/api/preference/preference_api.h"
 
 #include <map>
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/memory/singleton.h"
 #include "base/prefs/pref_service.h"
 #include "base/stl_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/api/content_settings/content_settings_service.h"
 #include "chrome/browser/extensions/api/preference/preference_api_constants.h"
 #include "chrome/browser/extensions/api/preference/preference_helpers.h"
 #include "chrome/browser/extensions/api/proxy/proxy_api.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/net/prediction_options.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "components/translate/core/common/translate_pref_names.h"
+#include "content/public/browser/browser_accessibility_state.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
 #include "extensions/browser/extension_pref_value_map.h"
 #include "extensions/browser/extension_pref_value_map_factory.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_prefs_factory.h"
 #include "extensions/browser/extension_system_provider.h"
 #include "extensions/browser/extensions_browser_client.h"
 #include "extensions/browser/pref_names.h"
 #include "extensions/common/error_utils.h"
@@ skipping 75 matching lines @@
     {"spokenFeedback", prefs::kAccessibilitySpokenFeedbackEnabled,
      APIPermission::kAccessibilityFeaturesRead,
      APIPermission::kAccessibilityFeaturesModify},
     {"stickyKeys", prefs::kAccessibilityStickyKeysEnabled,
      APIPermission::kAccessibilityFeaturesRead,
      APIPermission::kAccessibilityFeaturesModify},
     {"virtualKeyboard", prefs::kAccessibilityVirtualKeyboardEnabled,
      APIPermission::kAccessibilityFeaturesRead,
      APIPermission::kAccessibilityFeaturesModify},
 #endif
+    // accessibilityFeatures.animationPolicy is available for
+    // all platforms but the others from accessibilityFeatures
+    // is only avaiable for OS_CHROMEOS.
+    {"animationPolicy", prefs::kAnimationPolicy,
+     APIPermission::kAccessibilityFeaturesRead,
+     APIPermission::kAccessibilityFeaturesModify}
 };
 
 class IdentityPrefTransformer : public PrefTransformerInterface {
  public:
   base::Value* ExtensionToBrowserPref(const base::Value* extension_pref,
                                       std::string* error,
                                       bool* bad_message) override {
     return extension_pref->DeepCopy();
   }
 
@@ skipping 312 matching lines @@
     : profile_(Profile::FromBrowserContext(context)) {
   for (size_t i = 0; i < arraysize(kPrefMapping); ++i) {
     std::string event_name;
     APIPermission::ID permission = APIPermission::kInvalid;
     bool rv = PrefMapping::GetInstance()->FindEventForBrowserPref(
         kPrefMapping[i].browser_pref, &event_name, &permission);
     DCHECK(rv);
     EventRouter::Get(profile_)->RegisterObserver(this, event_name);
   }
   content_settings_store()->AddObserver(this);
+
+  PrefService* prefs = profile_->GetPrefs();
+  pref_change_registrar_.Init(prefs);
+  base::Closure animation_callback = base::Bind(
+      &PreferenceAPI::UpdateAnimationPolicy, base::Unretained(this));
+  pref_change_registrar_.Add(prefs::kAnimationPolicy, animation_callback);
+}
+
+void PreferenceAPI::UpdateAnimationPolicy() {
+  content::BrowserAccessibilityState::GetInstance()
+    ->UpdateAnimationPolicy();
 }
 
 PreferenceAPI::~PreferenceAPI() {
 }
 
 void PreferenceAPI::Shutdown() {
   EventRouter::Get(profile_)->UnregisterObserver(this);
   if (!extension_prefs()->extensions_disabled())
     ClearIncognitoSessionOnlyContentSettings();
   content_settings_store()->RemoveObserver(this);
@@ skipping 277 matching lines @@
           pref_key, PreferenceFunction::PERMISSION_TYPE_WRITE, &browser_pref)) {
     return false;
   }
 
   PreferenceAPI::Get(GetProfile())
       ->RemoveExtensionControlledPref(extension_id(), browser_pref, scope);
   return true;
 }
 
 }  // namespace extensions