This adds a "killed tab" page and pages reload when killed on ChromeOS

chrome/browser/tab_contents/tab_contents_view_mac.h

 // 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.
 
 #ifndef CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_MAC_H_
 #define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_MAC_H_
 #pragma once
 
 #import <Cocoa/Cocoa.h>
 
@@ skipping 42 matching lines @@
 
   virtual void CreateView(const gfx::Size& initial_size);
   virtual RenderWidgetHostView* CreateViewForWidget(
       RenderWidgetHost* render_widget_host);
   virtual gfx::NativeView GetNativeView() const;
   virtual gfx::NativeView GetContentNativeView() const;
   virtual gfx::NativeWindow GetTopLevelNativeWindow() const;
   virtual void GetContainerBounds(gfx::Rect* out) const;
   virtual void RenderViewCreated(RenderViewHost* host);
   virtual void SetPageTitle(const std::wstring& title);
-  virtual void OnTabCrashed();
+  virtual void OnTabCrashed(base::TerminationStatus status,
+                            int error_code);
   virtual void SizeContents(const gfx::Size& size);
   virtual void Focus();
   virtual void SetInitialFocus();
   virtual void StoreFocus();
   virtual void RestoreFocus();
   virtual void UpdatePreferredSize(const gfx::Size& pref_size);
   virtual RenderWidgetHostView* CreateNewWidgetInternal(
       int route_id,
       WebKit::WebPopupType popup_type);
   virtual void ShowCreatedWidgetInternal(RenderWidgetHostView* widget_host_view,
@@ skipping 44 matching lines @@
   // visible.
   scoped_nsobject<SadTabController> sad_tab_;
 
   // The page content's intrinsic width.
   int preferred_width_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContentsViewMac);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_MAC_H_