Show Zoom Levels as content settings

chrome/browser/ui/webui/options/content_settings_handler.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS_CONTENT_SETTINGS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_CONTENT_SETTINGS_HANDLER_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/pref_change_registrar.h"
 #include "chrome/browser/pepper_flash_settings_manager.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
 #include "chrome/browser/ui/webui/options/pepper_flash_content_settings_utils.h"
 #include "chrome/common/content_settings.h"
 #include "chrome/common/content_settings_types.h"
+#include "content/public/browser/host_zoom_map.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class HostContentSettingsMap;
 class ProtocolHandlerRegistry;
 
 namespace options {
 
 class ContentSettingsHandler : public OptionsPageUIHandler,
                                public content::NotificationObserver,
@@ skipping 75 matching lines @@
   // As above, but only OTR tables.
   void UpdateAllOTRExceptionsViewsFromModel();
   // Clobbers and rebuilds just the geolocation exception table.
   void UpdateGeolocationExceptionsView();
   // Clobbers and rebuilds just the desktop notification exception table.
   void UpdateNotificationExceptionsView();
   // Clobbers and rebuilds just the Media device exception table.
   void UpdateMediaExceptionsView();
   // Clobbers and rebuilds just the MIDI SysEx exception table.
   void UpdateMIDISysExExceptionsView();
+  // Clobbers and rebuilds just the zoom levels exception table.
+  void UpdateZoomLevelsExceptionsView();
   // Clobbers and rebuilds an exception table that's managed by the host content
   // settings map.
   void UpdateExceptionsViewFromHostContentSettingsMap(ContentSettingsType type);
   // As above, but acts on the OTR table for the content setting type.
   void UpdateExceptionsViewFromOTRHostContentSettingsMap(
       ContentSettingsType type);
   // Updates the radio buttons for enabling / disabling handlers.
   void UpdateHandlersEnabledRadios();
-  // Removes one geolocation exception.
+  // Removes one geolocation exception. |args| contains the parameters passed to
+  // RemoveException(). |arg_index| points to the first parameter n |args| that
+  // appears after the specified exception type to be removed by
+  // RemoveException().
   void RemoveGeolocationException(const base::ListValue* args,
                                   size_t arg_index);
   // Removes one notification exception.
   void RemoveNotificationException(const base::ListValue* args,
                                    size_t arg_index);
   // Removes one media camera and microphone exception.
   void RemoveMediaException(const base::ListValue* args, size_t arg_index);
   // Removes one exception of |type| from the host content settings map.
   void RemoveExceptionFromHostContentSettingsMap(
       const base::ListValue* args,
       size_t arg_index,
       ContentSettingsType type);
+  // Removes one zoom level exception.
+  void RemoveZoomLevelException(const base::ListValue* args, size_t arg_index);
 
   // Callbacks used by the page ------------------------------------------------
 
   // Sets the default value for a specific content type. |args| includes the
   // content type and a string describing the new default the user has
   // chosen.
   void SetContentFilter(const base::ListValue* args);
 
   // Removes the given row from the table. The first entry in |args| is the
   // content type, and the rest of the arguments depend on the content type
@@ skipping 32 matching lines @@
   void RefreshFlashMediaSettings();
 
   // Fills in |exceptions| with Values for the given |type| from |map|.
   void GetExceptionsFromHostContentSettingsMap(
       const HostContentSettingsMap* map,
       ContentSettingsType type,
       base::ListValue* exceptions);
 
   void OnPepperFlashPrefChanged();
 
+  // content::HostZoomMap subscription.
+  void OnZoomLevelChanged(const content::HostZoomMap::ZoomLevelChange& change);
+
   void ShowFlashMediaLink(LinkType link_type, bool show);
 
   void UpdateFlashMediaLinksVisibility();
 
   void UpdateProtectedContentExceptionsButton();
 
   // Member variables ---------------------------------------------------------
 
   content::NotificationRegistrar notification_registrar_;
   PrefChangeRegistrar pref_change_registrar_;
   scoped_ptr<PepperFlashSettingsManager> flash_settings_manager_;
   MediaSettingsInfo media_settings_;
+  scoped_ptr<content::HostZoomMap::Subscription> host_zoom_map_subscription_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentSettingsHandler);
 };
 
 }  // namespace options
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_CONTENT_SETTINGS_HANDLER_H_