Plumb through NetworkChangeNotifier::IsOffline() to WebKit, enabling

content/browser/tab_contents/tab_contents.h

 // 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.
 
 #ifndef CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #define CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 17 matching lines @@
 #include "chrome/common/translate_errors.h"
 #include "chrome/common/web_apps.h"
 #include "content/browser/tab_contents/constrained_window.h"
 #include "content/browser/tab_contents/language_state.h"
 #include "content/browser/tab_contents/navigation_controller.h"
 #include "content/browser/tab_contents/navigation_entry.h"
 #include "content/browser/tab_contents/page_navigator.h"
 #include "content/browser/tab_contents/render_view_host_manager.h"
 #include "content/browser/webui/web_ui_factory.h"
 #include "net/base/load_states.h"
+#include "net/base/network_change_notifier.h"
 #include "ui/gfx/native_widget_types.h"
 
 #if defined(OS_WIN)
 #include "base/win/scoped_handle.h"
 #endif
 
 namespace gfx {
 class Rect;
 }
 
@@ skipping 46 matching lines @@
 struct WebPreferences;
 
 // Describes what goes in the main content area of a tab. TabContents is
 // the only type of TabContents, and these should be merged together.
 class TabContents : public PageNavigator,
                     public NotificationObserver,
                     public RenderViewHostDelegate,
                     public RenderViewHostManager::Delegate,
                     public JavaScriptAppModalDialogDelegate,
                     public ImageLoadingTracker::Observer,
-                    public TabSpecificContentSettings::Delegate {
+                    public TabSpecificContentSettings::Delegate,
+                    public net::NetworkChangeNotifier::OnlineStateObserver {
  public:
   // Flags passed to the TabContentsDelegate.NavigationStateChanged to tell it
   // what has changed. Combine them to update more than one thing.
   enum InvalidateTypes {
     INVALIDATE_URL             = 1 << 0,  // The URL has changed.
     INVALIDATE_TAB             = 1 << 1,  // The favicon, app icon, or crashed
                                           // state changed.
     INVALIDATE_LOAD            = 1 << 2,  // The loading state has changed.
     INVALIDATE_PAGE_ACTIONS    = 1 << 3,  // Page action icons have changed.
     INVALIDATE_BOOKMARK_BAR    = 1 << 4,  // State of ShouldShowBookmarkBar
@@ skipping 904 matching lines @@
   const Extension* GetExtensionContaining(const GURL& url);
 
   // Resets app_icon_ and if |extension| is non-null creates a new
   // ImageLoadingTracker to load the extension's image.
   void UpdateExtensionAppIcon(const Extension* extension);
 
   // ImageLoadingTracker::Observer.
   virtual void OnImageLoaded(SkBitmap* image, ExtensionResource resource,
                              int index);
 
+  // NetworkChangeNotifier::OnlineStateObserver:
+  virtual void OnOnlineStateChanged(bool online);
+
   // Checks with the PrerenderManager if the specified URL has been preloaded,
   // and if so, swap the RenderViewHost with the preload into this TabContents
   // object.
   bool MaybeUsePreloadedPage(const GURL& url);
 
   // Adds the given window to the list of child windows. The window will notify
   // via WillClose() when it is being destroyed.
   void AddConstrainedDialog(ConstrainedWindow* window);
 
   // Data for core operation ---------------------------------------------------
@@ skipping 221 matching lines @@
   // (full-page plugins for now only) permissions.
   int content_restrictions_;
 
   // Were the contents of this tab previously prerendered?
   bool was_prerendered_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContents);
 };
 
 #endif  // CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_