Use extension to show activation message.

content/browser/tab_contents/interstitial_page.cc

 // Copyright (c) 2011 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 "content/browser/tab_contents/interstitial_page.h"
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #include "base/threading/thread.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_list.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/dom_operation_notification_details.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_preferences_util.h"
 #include "chrome/common/bindings_policy.h"
 #include "chrome/common/dom_storage_common.h"
 #include "chrome/common/net/url_request_context_getter.h"
+#include "chrome/common/page_transition_types.h"
+#include "chrome/common/render_messages_params.h"
 #include "content/browser/browser_thread.h"
 #include "content/browser/renderer_host/render_process_host.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/renderer_host/render_widget_host_view.h"
 #include "content/browser/renderer_host/resource_dispatcher_host.h"
 #include "content/browser/site_instance.h"
 #include "content/browser/tab_contents/navigation_controller.h"
 #include "content/browser/tab_contents/navigation_entry.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/browser/tab_contents/tab_contents_view.h"
@@ skipping 312 matching lines @@
 void InterstitialPage::DidNavigate(
     RenderViewHost* render_view_host,
     const ViewHostMsg_FrameNavigate_Params& params) {
   // A fast user could have navigated away from the page that triggered the
   // interstitial while the interstitial was loading, that would have disabled
   // us. In that case we can dismiss ourselves.
   if (!enabled_) {
     DontProceed();
     return;
   }
+  if (params.transition == PageTransition::AUTO_SUBFRAME) {
+    // No need to handle navigate message from iframe in the interstitial page.
+    return;
+  }
 
   // The RenderViewHost has loaded its contents, we can show it now.
   render_view_host_->view()->Show();
   tab_->set_interstitial_page(this);
 
   NotificationService::current()->Notify(
       NotificationType::INTERSTITIAL_ATTACHED,
       Source<TabContents>(tab_),
       NotificationService::NoDetails());
 
@@ skipping 365 matching lines @@
 
 void InterstitialPage::UpdateInspectorSetting(const std::string& key,
                                               const std::string& value) {
   RenderViewHostDelegateHelper::UpdateInspectorSetting(
       tab_->profile(), key, value);
 }
 
 void InterstitialPage::ClearInspectorSettings() {
   RenderViewHostDelegateHelper::ClearInspectorSettings(tab_->profile());
 }