cros: Various fixes needed for preloading lock screen.

chrome/browser/chromeos/login/ui/shared_web_view.cc

 // Copyright 2016 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/chromeos/login/ui/shared_web_view.h"
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/login/ui/web_view_handle.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/views/controls/webview/webview.h"
 
 namespace chromeos {
 
 SharedWebView::SharedWebView(Profile* profile) : profile_(profile) {
-  registrar_.Add(this, chrome::NOTIFICATION_CLOSE_ALL_BROWSERS_REQUEST,
+  registrar_.Add(this, chrome::NOTIFICATION_APP_TERMINATING,
                  content::NotificationService::AllSources());
   memory_pressure_listener_ = base::MakeUnique<base::MemoryPressureListener>(
       base::Bind(&SharedWebView::OnMemoryPressure, base::Unretained(this)));
 }
 
 SharedWebView::~SharedWebView() {}
 
 void SharedWebView::Shutdown() {
   web_view_handle_ = nullptr;
 }
@@ skipping 25 matching lines @@
     reused = false;
   }
 
   *out_handle = web_view_handle_;
   return reused;
 }
 
 void SharedWebView::Observe(int type,
                             const content::NotificationSource& source,
                             const content::NotificationDetails& details) {
-  DCHECK_EQ(chrome::NOTIFICATION_CLOSE_ALL_BROWSERS_REQUEST, type);
+  DCHECK_EQ(chrome::NOTIFICATION_APP_TERMINATING, type);
   web_view_handle_ = nullptr;
 }
 
 void SharedWebView::OnMemoryPressure(
     base::MemoryPressureListener::MemoryPressureLevel level) {
   switch (level) {
     case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_NONE:
       break;
     case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_MODERATE:
     case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL:
       web_view_handle_ = nullptr;
       break;
   }
 }
 
 }  // namespace chromeos