Revert of Make LoadMonitoringExtensionHostQueue remove itself as an ExtensionHost observer at the...

chrome/browser/extensions/extension_view_host.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/extensions/extension_view_host.h"
 
 #include "base/strings/string_piece.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/extension_view.h"
 #include "chrome/browser/extensions/window_controller.h"
@@ skipping 81 matching lines @@
 
 void ExtensionViewHost::UnhandledKeyboardEvent(
     WebContents* source,
     const content::NativeWebKeyboardEvent& event) {
   view_->HandleKeyboardEvent(source, event);
 }
 
 // ExtensionHost overrides:
 
 void ExtensionViewHost::OnDidStopLoading() {
+  DCHECK(did_stop_loading());
   view_->DidStopLoading();
 }
 
 void ExtensionViewHost::LoadInitialURL() {
   if (!ExtensionSystem::Get(browser_context())->
           runtime_data()->IsBackgroundPageReady(extension())) {
     // Make sure the background page loads before any others.
     registrar_.Add(this,
                    extensions::NOTIFICATION_EXTENSION_BACKGROUND_PAGE_READY,
                    content::Source<Extension>(extension()));
@@ skipping 184 matching lines @@
                                 const content::NotificationSource& source,
                                 const content::NotificationDetails& details) {
   DCHECK_EQ(type, extensions::NOTIFICATION_EXTENSION_BACKGROUND_PAGE_READY);
   DCHECK(ExtensionSystem::Get(browser_context())
              ->runtime_data()
              ->IsBackgroundPageReady(extension()));
   LoadInitialURL();
 }
 
 }  // namespace extensions