Zoom Extension API (chrome)

chrome/browser/chrome_content_browser_client.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/chrome_content_browser_client.h"
 
 #include <set>
 #include <utility>
 #include <vector>
 
@@ skipping 65 matching lines @@
 #include "chrome/browser/ssl/ssl_blocking_page.h"
 #include "chrome/browser/ssl/ssl_client_certificate_selector.h"
 #include "chrome/browser/sync_file_system/local/sync_file_system_backend.h"
 #include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/browser/ui/blocked_content/blocked_window_params.h"
 #include "chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h"
 #include "chrome/browser/ui/chrome_select_file_policy.h"
 #include "chrome/browser/ui/sync/sync_promo_ui.h"
 #include "chrome/browser/ui/tab_contents/chrome_web_contents_view_delegate.h"
 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
+#include "chrome/browser/ui/zoom/zoom_controller.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/env_vars.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/extension_process_policy.h"
 #include "chrome/common/extensions/manifest_handlers/app_isolation_info.h"
 #include "chrome/common/logging_chrome.h"
 #include "chrome/common/pepper_permission_util.h"
 #include "chrome/common/pref_names.h"
@@ skipping 747 matching lines @@
     SiteInstance* guest_site_instance,
     WebContents* guest_web_contents,
     WebContents* opener_web_contents,
     content::BrowserPluginGuestDelegate** guest_delegate,
     scoped_ptr<base::DictionaryValue> extra_params) {
 #if defined(ENABLE_EXTENSIONS)
   if (!guest_site_instance) {
     NOTREACHED();
     return;
   }
+

[wjmaclean, 2014/06/23 18:40:48]

Oops, I'll remove this line.

   GURL guest_site_url = guest_site_instance->GetSiteURL();
   const std::string& extension_id = guest_site_url.host();
 
   Profile* profile = Profile::FromBrowserContext(
       guest_web_contents->GetBrowserContext());
   ExtensionService* service =
       extensions::ExtensionSystem::Get(profile)->extension_service();
   if (!service) {
     NOTREACHED();
     return;
   }
 
   /// TODO(fsamuel): In the future, certain types of GuestViewBases won't
   // require extension bindings. At that point, we should clear |extension_id|
   // instead of exiting early.
   if (!extension_id.empty() &&
       !service->GetExtensionById(extension_id, false)) {
     NOTREACHED();
     return;
   }
 
+  // Create a zoom controller for the guest contents give it access to
+  // GetZoomLevel() and and SetZoomLevel() in WebViewGuest.
+  // TODO(wjmaclean) This currently uses the same HostZoomMap as the browser
+  // context, but we eventually want to isolate the guest contents from zoom
+  // changes outside the guest (e.g. in the main browser), so we should
+  // create a separate HostZoomMap for the guest.
+  ZoomController::CreateForWebContents(guest_web_contents);
   if (opener_web_contents) {
     GuestViewBase* guest = GuestViewBase::FromWebContents(opener_web_contents);
     DCHECK(guest);
 
     // Create a new GuestViewBase of the same type as the opener.
     *guest_delegate = GuestViewBase::Create(
         guest_instance_id,
         guest_web_contents,
         extension_id,
         guest->GetViewType());
@@ skipping 1985 matching lines @@
       switches::kDisableWebRtcEncryption,
     };
     to_command_line->CopySwitchesFrom(from_command_line,
                                       kWebRtcDevSwitchNames,
                                       arraysize(kWebRtcDevSwitchNames));
   }
 }
 #endif  // defined(ENABLE_WEBRTC)
 
 }  // namespace chrome