Web MIDI: add a new UMA entry for the final result code

media/midi/midi_manager_win.h

 // Copyright 2013 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 MEDIA_MIDI_MIDI_MANAGER_WIN_H_
 #define MEDIA_MIDI_MIDI_MANAGER_WIN_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/thread.h"
 #include "base/time/time.h"
 #include "media/midi/midi_manager.h"
 
 namespace media {
 namespace midi {
 
 class MidiServiceWinDelegate {
  public:
   virtual ~MidiServiceWinDelegate() {}
-  virtual void OnCompleteInitialization(MidiResult result) = 0;
+  virtual void OnCompleteInitialization(Result result) = 0;
   virtual void OnAddInputPort(MidiPortInfo info) = 0;
   virtual void OnAddOutputPort(MidiPortInfo info) = 0;
   virtual void OnSetInputPortState(uint32 port_index, MidiPortState state) = 0;
   virtual void OnSetOutputPortState(uint32 port_index, MidiPortState state) = 0;
   virtual void OnReceiveMidiData(uint32 port_index,
                                  const std::vector<uint8>& data,
                                  base::TimeTicks time) = 0;
 };
 
 class MidiServiceWin {
@@ skipping 13 matching lines @@
   ~MidiManagerWin() override;
 
   // MidiManager overrides:
   void StartInitialization() final;
   void DispatchSendMidiData(MidiManagerClient* client,
                             uint32 port_index,
                             const std::vector<uint8>& data,
                             double timestamp) final;
 
   // MidiServiceWinDelegate overrides:
-  void OnCompleteInitialization(MidiResult result) final;
+  void OnCompleteInitialization(Result result) final;
   void OnAddInputPort(MidiPortInfo info) final;
   void OnAddOutputPort(MidiPortInfo info) final;
   void OnSetInputPortState(uint32 port_index, MidiPortState state) final;
   void OnSetOutputPortState(uint32 port_index, MidiPortState state) final;
   void OnReceiveMidiData(uint32 port_index,
                          const std::vector<uint8>& data,
                          base::TimeTicks time) final;
 
  private:
   scoped_ptr<MidiServiceWin> midi_service_;
   DISALLOW_COPY_AND_ASSIGN(MidiManagerWin);
 };
 
 }  // namespace midi
 }  // namespace media
 
 #endif  // MEDIA_MIDI_MIDI_MANAGER_WIN_H_