Drop queued IPC messages if the child process dies while spawning

content/browser/renderer_host/render_process_host_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_
 
 #include <map>
 #include <queue>
 #include <string>
@@ skipping 283 matching lines @@
   bool is_self_deleted_;
 #endif
 
   // The count of currently swapped out but pending RenderViews.  We have
   // started to swap these in, so the renderer process should not exit if
   // this count is non-zero.
   int32 pending_views_;
 
  private:
   friend class VisitRelayingRenderProcessHost;
+  friend class ChildProcessLauncherBrowserTest_ChildSpawnFail_Test;
 
   scoped_ptr<IPC::ChannelProxy> CreateChannelProxy(
       const std::string& channel_id);
 
   // Creates and adds the IO thread message filters.
   void CreateMessageFilters();
 
   // Registers Mojo services to be exposed to the renderer.
   void RegisterMojoServices();
 
@@ skipping 187 matching lines @@
   bool subscribe_uniform_enabled_;
 
   base::WeakPtrFactory<RenderProcessHostImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_