Fix Purify UMR and MLK due to ExtensionViewTest:...

chrome/browser/renderer_host/render_view_host.cc

 // Copyright (c) 2006-2008 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/renderer_host/render_view_host.h"
 
 #include <string>
 #include <vector>
 
 #include "base/gfx/native_widget_types.h"
@@ skipping 1209 matching lines @@
 
 void RenderViewHost::OnEnterOrSpace() {
   delegate_->OnEnterOrSpace();
 }
 
 void RenderViewHost::OnMissingPluginStatus(int status) {
   delegate_->OnMissingPluginStatus(status);
 }
 
 void RenderViewHost::UpdateBackForwardListCount() {
-  int back_list_count, forward_list_count;
+  int back_list_count = 0, forward_list_count = 0;
   delegate_->GetHistoryListCount(&back_list_count, &forward_list_count);
   Send(new ViewMsg_UpdateBackForwardListCount(
       routing_id(), back_list_count, forward_list_count));
 }
 
 void RenderViewHost::GetAllSavableResourceLinksForCurrentPage(
     const GURL& page_url) {
   Send(new ViewMsg_GetAllSavableResourceLinksForCurrentPage(routing_id(),
                                                             page_url));
 }
@@ skipping 88 matching lines @@
 void RenderViewHost::RaisePersonalizationEvent(std::string event_name,
                                                std::string event_arg) {
   Send(new ViewMsg_PersonalizationEvent(routing_id(), event_name, event_arg));
 }
 #endif
 
 void RenderViewHost::ForwardMessageFromExternalHost(
     const std::string& message) {
   Send(new ViewMsg_HandleMessageFromExternalHost(routing_id(), message));
 }