Set up hdmi output device default volume to 100.

chromeos/audio/cras_audio_handler.h

 // Copyright (c) 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 CHROMEOS_AUDIO_CRAS_AUDIO_HANDLER_H_
 #define CHROMEOS_AUDIO_CRAS_AUDIO_HANDLER_H_
 
 #include <queue>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "chromeos/audio/audio_device.h"
 #include "chromeos/audio/audio_pref_observer.h"
 #include "chromeos/dbus/audio_node.h"
 #include "chromeos/dbus/cras_audio_client.h"
 #include "chromeos/dbus/volume_state.h"
 
 class PrefRegistrySimple;
 class PrefService;
 
-namespace {
-
-// Default value for the volume pref, as a percent in the range [0.0, 100.0].
-const double kDefaultVolumeGainPercent = 75.0;
-
-// Values used for muted preference.
-const int kPrefMuteOff = 0;
-const int kPrefMuteOn = 1;
-
-}  // namespace
-
 namespace chromeos {
 
 class AudioDevicesPrefHandler;
 
 class CHROMEOS_EXPORT CrasAudioHandler : public CrasAudioClient::Observer,
                                          public AudioPrefObserver {
  public:
   typedef std::priority_queue<AudioDevice,
                               std::vector<AudioDevice>,
                               AudioDeviceCompare> AudioDevicePriorityQueue;
@@ skipping 210 matching lines @@
 
   bool output_mute_locked_;
   bool input_mute_locked_;
 
   DISALLOW_COPY_AND_ASSIGN(CrasAudioHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_AUDIO_CRAS_AUDIO_HANDLER_H_