Add FILE_MISSING in PpapiThread::LoadResult for UMA reporting.

content/ppapi_plugin/ppapi_thread.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_PPAPI_PLUGIN_PPAPI_THREAD_H_
 #define CONTENT_PPAPI_PLUGIN_PPAPI_THREAD_H_
 
 #include <map>
 #include <string>
 
@@ skipping 38 matching lines @@
   virtual void Shutdown() OVERRIDE;
 
  private:
   // Make sure the enum list in tools/histogram/histograms.xml is updated with
   // any change in this list.
   enum LoadResult {
     LOAD_SUCCESS,
     LOAD_FAILED,
     ENTRY_POINT_MISSING,
     INIT_FAILED,
+    FILE_MISSING,
     // NOTE: Add new values only immediately above this line.
     LOAD_RESULT_MAX  // Boundary value for UMA_HISTOGRAM_ENUMERATION.
   };
 
   // ChildThread overrides.
   virtual bool Send(IPC::Message* msg) OVERRIDE;
   virtual bool OnControlMessageReceived(const IPC::Message& msg) OVERRIDE;
   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
 
   // PluginDispatcher::PluginDelegate implementation.
@@ skipping 86 matching lines @@
   // Caches the handle to the peer process if this is a broker.
   base::win::ScopedHandle peer_handle_;
 #endif
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(PpapiThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PPAPI_PLUGIN_PPAPI_THREAD_H_