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

chrome/browser/web_resource/web_resource_service.cc

 // 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.
 
 #include "chrome/browser/web_resource/web_resource_service.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/string_util.h"
 #include "base/string_number_conversions.h"
@@ skipping 139 matching lines @@
       } else {
         OnUnpackWebResourceFailed(unpacker.error_message());
       }
     }
   }
 
  private:
   ~UnpackerClient() {}
 
   // UtilityProcessHost::Client
-  virtual void OnProcessCrashed() {
+  virtual void OnProcessCrashed(int exit_code) {
     if (got_response_)
       return;
 
     OnUnpackWebResourceFailed(
         "Chrome crashed while trying to retrieve web resources.");
   }
 
   virtual void OnUnpackWebResourceSucceeded(
       const DictionaryValue& parsed_json) {
     web_resource_service_->OnWebResourceUnpacked(parsed_json);
@@ skipping 352 matching lines @@
           profile->GetProfileSyncService()) == sync_ui_util::SYNCED ||
           has_extensions;
 
   return !promo_closed &&
          promo_options &&
          g_browser_process->GetApplicationLocale() == "en-US";
 }
 
 }  // namespace WebResourceService