Zoom Extension API (work in progress)

chrome/browser/guestview/webview/webview_guest.cc

 // Copyright 2013 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/guestview/webview/webview_guest.h"
 
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/api/web_request/web_request_api.h"
 #include "chrome/browser/extensions/api/webview/webview_api.h"
 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
 #include "chrome/browser/extensions/extension_renderer_state.h"
 #include "chrome/browser/extensions/menu_manager.h"
 #include "chrome/browser/extensions/script_executor.h"
 #include "chrome/browser/favicon/favicon_tab_helper.h"
 #include "chrome/browser/guestview/guestview_constants.h"
 #include "chrome/browser/guestview/webview/webview_constants.h"
 #include "chrome/browser/guestview/webview/webview_permission_types.h"
+#include "chrome/browser/ui/zoom/zoom_controller.h"
 #include "chrome/common/chrome_version_info.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/resource_request_details.h"
@@ skipping 470 matching lines @@
                    is_top_level);
       break;
     }
     default:
       NOTREACHED() << "Unexpected notification sent.";
       break;
   }
 }
 
 void WebViewGuest::SetZoom(double zoom_factor) {
+  ZoomController* zoom_controller =
+      ZoomController::FromWebContents(guest_web_contents());
   double zoom_level = content::ZoomFactorToZoomLevel(zoom_factor);
-  guest_web_contents()->SetZoomLevel(zoom_level);
+  zoom_controller->SetZoomLevel(zoom_level);
 
   scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());
   args->SetDouble(webview::kOldZoomFactor, current_zoom_factor_);
   args->SetDouble(webview::kNewZoomFactor, zoom_factor);
   DispatchEvent(new GuestView::Event(webview::kEventZoomChange, args.Pass()));
 
   current_zoom_factor_ = zoom_factor;
 }
 
 double WebViewGuest::GetZoom() {
@@ skipping 306 matching lines @@
     const PermissionResponseCallback& callback,
     BrowserPluginPermissionType permission_type,
     bool allowed_by_default)
     : callback(callback),
       permission_type(permission_type),
       allowed_by_default(allowed_by_default) {
 }
 
 WebViewGuest::PermissionResponseInfo::~PermissionResponseInfo() {
 }