This adds some plumbing for propagating the reason for a renderer's death

chrome/browser/renderer_host/render_view_host.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_RENDERER_HOST_RENDER_VIEW_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
+#include "base/process_util.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/renderer_host/render_widget_host.h"
 #include "chrome/browser/ui/find_bar/find_bar_controller.h"
 #include "chrome/common/content_settings_types.h"
 #include "chrome/common/page_zoom.h"
 #include "chrome/common/translate_errors.h"
 #include "chrome/common/view_types.h"
 #include "chrome/common/window_container_type.h"
 #include "net/base/load_states.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebConsoleMessage.h"
@@ skipping 97 matching lines @@
 
   // Set up the RenderView child process. Virtual because it is overridden by
   // TestRenderViewHost. If the |frame_name| parameter is non-empty, it is used
   // as the name of the new top-level frame.
   virtual bool CreateRenderView(const string16& frame_name);
 
   // Returns true if the RenderView is active and has not crashed. Virtual
   // because it is overridden by TestRenderViewHost.
   virtual bool IsRenderViewLive() const;
 
+  base::TerminationStatus render_view_termination_status() const {
+    return render_view_termination_status_;
+  }
+
   // Send the renderer process the current preferences supplied by the
   // RenderViewHostDelegate.
   void SyncRendererPrefs();
 
   // Sends the given navigation message. Use this rather than sending it
   // yourself since this does the internal bookkeeping described below. This
   // function takes ownership of the provided message pointer.
   //
   // If a cross-site request is in progress, we may be suspended while waiting
   // for the onbeforeunload handler, so this function might buffer the message
@@ skipping 403 matching lines @@
 
   // IPC message handlers.
   void OnMsgShowView(int route_id,
                      WindowOpenDisposition disposition,
                      const gfx::Rect& initial_pos,
                      bool user_gesture);
   void OnMsgShowWidget(int route_id, const gfx::Rect& initial_pos);
   void OnMsgShowFullscreenWidget(int route_id);
   void OnMsgRunModal(IPC::Message* reply_msg);
   void OnMsgRenderViewReady();
-  void OnMsgRenderViewGone();
+  void OnMsgRenderViewGone(int status, int error_code);
   void OnMsgNavigate(const IPC::Message& msg);
   void OnMsgUpdateState(int32 page_id,
                         const std::string& state);
   void OnMsgUpdateTitle(int32 page_id, const std::wstring& title);
   void OnMsgUpdateEncoding(const std::string& encoding);
   void OnMsgUpdateTargetURL(int32 page_id, const GURL& url);
   void OnMsgThumbnail(const GURL& url,
                       const ThumbnailScore& score,
                       const SkBitmap& bitmap);
   void OnMsgScreenshot(const SkBitmap& bitmap);
@@ skipping 248 matching lines @@
   std::vector<string16> autofill_icons_;
   std::vector<int> autofill_unique_ids_;
   int autofill_query_id_;
 
   // Whether the accessibility tree should be saved, for unit testing.
   bool save_accessibility_tree_for_testing_;
 
   // The most recently received accessibility tree - for unit testing only.
   webkit_glue::WebAccessibility accessibility_tree_;
 
+  // The termination status of the last render view that terminated.
+  base::TerminationStatus render_view_termination_status_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderViewHost);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_