Send a message to the renderers when content settings change.

chrome/browser/tab_contents/tab_contents.cc

 // Copyright (c) 2010 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/tab_contents/tab_contents.h"
 
 #include "app/gfx/text_elider.h"
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/file_version_info.h"
@@ skipping 13 matching lines @@
 #include "chrome/browser/dom_ui/dom_ui.h"
 #include "chrome/browser/dom_ui/dom_ui_factory.h"
 #include "chrome/browser/download/download_item_model.h"
 #include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/download/download_request_manager.h"
 #include "chrome/browser/external_protocol_handler.h"
 #include "chrome/browser/extensions/extensions_service.h"
 #include "chrome/browser/favicon_service.h"
 #include "chrome/browser/form_field_history_manager.h"
 #include "chrome/browser/google_util.h"
+#include "chrome/browser/host_content_settings_map.h"
 #include "chrome/browser/hung_renderer_dialog.h"
 #include "chrome/browser/jsmessage_box_handler.h"
 #include "chrome/browser/load_from_memory_cache_details.h"
 #include "chrome/browser/load_notification_details.h"
 #include "chrome/browser/metrics/metric_event_duration_details.h"
 #include "chrome/browser/modal_html_dialog_delegate.h"
 #include "chrome/browser/omnibox_search_hint.h"
 #include "chrome/browser/password_manager/password_manager.h"
 #include "chrome/browser/plugin_installer.h"
 #include "chrome/browser/profile.h"
@@ skipping 251 matching lines @@
                  NotificationService::AllSources());
   registrar_.Add(this, NotificationType::BOOKMARK_MODEL_LOADED,
                  NotificationService::AllSources());
   registrar_.Add(this, NotificationType::RENDER_WIDGET_HOST_DESTROYED,
                  NotificationService::AllSources());
 #if defined(OS_LINUX)
   registrar_.Add(this, NotificationType::BROWSER_THEME_CHANGED,
                  NotificationService::AllSources());
 #endif
 
+  // Register for notifications about content setting changes.
+  registrar_.Add(this, NotificationType::CONTENT_SETTINGS_CHANGED,
+                 NotificationService::AllSources());
+
   // Keep a global copy of the previous search string (if any).
   static string16 global_last_search = string16();
   last_search_prepopulate_text_ = &global_last_search;
 
   // Set-up the showing of the omnibox search infobar if applicable.
   if (OmniboxSearchHint::IsEnabled(profile))
     omnibox_search_hint_.reset(new OmniboxSearchHint(this));
 }
 
 TabContents::~TabContents() {
@@ skipping 2396 matching lines @@
 
 #if defined(OS_LINUX)
     case NotificationType::BROWSER_THEME_CHANGED: {
       renderer_preferences_util::UpdateFromSystemSettings(
           &renderer_preferences_, profile());
       render_view_host()->SyncRendererPrefs();
       break;
     }
 #endif
 
+    case NotificationType::CONTENT_SETTINGS_CHANGED: {
+      Details<HostContentSettingsMap::ContentSettingsDetails>
+          settings_details(details);
+      std::string host;
+      NavigationEntry* entry = controller_.GetActiveEntry();
+      if (entry)
+        host = entry->url().host();
+      Source<HostContentSettingsMap> content_settings(source);
+      if (settings_details.ptr()->host().empty() ||
+          settings_details.ptr()->host() == host) {
+        render_view_host()->SendContentSettings(host,
+            content_settings.ptr()->GetContentSettings(host));
+      }
+      break;
+    }
+
     default:
       NOTREACHED();
   }
 }
 
 std::wstring TabContents::GetMessageBoxTitle(const GURL& frame_url,
                                              bool is_alert) {
   if (!frame_url.has_host())
     return l10n_util::GetString(
         is_alert ? IDS_JAVASCRIPT_ALERT_DEFAULT_TITLE
@@ skipping 40 matching lines @@
   render_view_host()->JavaScriptMessageBoxClosed(reply_msg, success, prompt);
 }
 
 void TabContents::SetSuppressMessageBoxes(bool suppress_message_boxes) {
   set_suppress_javascript_messages(suppress_message_boxes);
 }
 
 void TabContents::set_encoding(const std::string& encoding) {
   encoding_ = CharacterEncoding::GetCanonicalEncodingNameByAliasName(encoding);
 }