Fix for 'Simple Adblock' extension crashes

content/renderer/render_view_impl.cc

 // Copyright (c) 2012 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 "content/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 3209 matching lines @@
   // WebPluginDelegateProxy is responsible for figuring out if this event
   // applies to it or not, so inform all the delegates.
   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
   for (plugin_it = plugin_delegates_.begin();
        plugin_it != plugin_delegates_.end(); ++plugin_it) {
     (*plugin_it)->ImeCompositionCompleted(text, plugin_id);
   }
 }
 #endif  // OS_MACOSX
 
+void RenderViewImpl::OnClose() {
+  if (closing_)
+    RenderThread::Get()->Send(new ViewHostMsg_Close_ACK(routing_id_));
+  RenderWidget::OnClose();
+}
+
 void RenderViewImpl::Close() {
   // We need to grab a pointer to the doomed WebView before we destroy it.
   WebView* doomed = webview();
   RenderWidget::Close();
   g_view_map.Get().erase(doomed);
   g_routing_id_view_map.Get().erase(routing_id_);
+  RenderThread::Get()->Send(new ViewHostMsg_Close_ACK(routing_id_));
 }
 
 void RenderViewImpl::DidHandleKeyEvent() {
   ClearEditCommands();
 }
 
 bool RenderViewImpl::WillHandleMouseEvent(const blink::WebMouseEvent& event) {
   possible_drag_event_info_.event_source =
       ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE;
   possible_drag_event_info_.event_location =
@@ skipping 806 matching lines @@
     std::vector<gfx::Size> sizes;
     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
     if (!url.isEmpty())
       urls.push_back(
           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content