Persist the user's active audio device choice across chromeos session and reboots.

chromeos/audio/audio_devices_pref_handler_impl_unittest.cc

 // Copyright 2014 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 "chromeos/audio/audio_devices_pref_handler_impl.h"
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 79 matching lines @@
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioDevicesPrefHandlerTest);
 };
 
 TEST_F(AudioDevicesPrefHandlerTest, TestDefaultValues) {
   // TODO(rkc): Once the bug with default preferences is fixed, fix this test
   // also. http://crbug.com/442489
   EXPECT_EQ(75.0, audio_pref_handler_->GetInputGainValue(&kInternalMic));
   EXPECT_EQ(75.0, audio_pref_handler_->GetOutputVolumeValue(&kHeadphone));
   EXPECT_EQ(75.0, audio_pref_handler_->GetOutputVolumeValue(&kHDMIOutput));
-  EXPECT_EQ(AUDIO_STATE_NOT_AVAILABLE,
-            audio_pref_handler_->GetDeviceState(kInternalMic));
-  EXPECT_EQ(AUDIO_STATE_NOT_AVAILABLE,
-            audio_pref_handler_->GetDeviceState(kHeadphone));
-  EXPECT_EQ(AUDIO_STATE_NOT_AVAILABLE,
-            audio_pref_handler_->GetDeviceState(kHDMIOutput));
+  bool active, activate_by_user;
+  EXPECT_FALSE(audio_pref_handler_->GetDeviceActive(kInternalMic, &active,
+                                                    &activate_by_user));
+  EXPECT_FALSE(audio_pref_handler_->GetDeviceActive(kHeadphone, &active,
+                                                    &activate_by_user));
+  EXPECT_FALSE(audio_pref_handler_->GetDeviceActive(kHDMIOutput, &active,
+                                                    &activate_by_user));
 }
 
 TEST_F(AudioDevicesPrefHandlerTest, PrefsRegistered) {
   // The standard audio prefs are registered.
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioDevicesVolumePercent));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioDevicesMute));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioOutputAllowed));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioVolumePercent));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioMute));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioDevicesState));
@@ skipping 12 matching lines @@
   audio_pref_handler_->SetVolumeGainValue(kOutputDeviceWithSpecialCharacters,
                                           85.92);
 
   EXPECT_EQ(73.31, audio_pref_handler_->GetInputGainValue(
       &kInputDeviceWithSpecialCharacters));
   EXPECT_EQ(85.92, audio_pref_handler_->GetOutputVolumeValue(
       &kOutputDeviceWithSpecialCharacters));
 }
 
 TEST_F(AudioDevicesPrefHandlerTest, TestDeviceStates) {
-  audio_pref_handler_->SetDeviceState(kInternalMic, AUDIO_STATE_NOT_AVAILABLE);
-  EXPECT_EQ(AUDIO_STATE_NOT_AVAILABLE,
-            audio_pref_handler_->GetDeviceState(kInternalMic));
-  audio_pref_handler_->SetDeviceState(kHeadphone, AUDIO_STATE_ACTIVE);
-  EXPECT_EQ(AUDIO_STATE_ACTIVE,
-            audio_pref_handler_->GetDeviceState(kHeadphone));
-  audio_pref_handler_->SetDeviceState(kHDMIOutput, AUDIO_STATE_INACTIVE);
-  EXPECT_EQ(AUDIO_STATE_INACTIVE,
-            audio_pref_handler_->GetDeviceState(kHDMIOutput));
+  audio_pref_handler_->SetDeviceActive(kInternalMic, true, true);
+  bool active = false;
+  bool activate_by_user = false;
+  EXPECT_TRUE(audio_pref_handler_->GetDeviceActive(kInternalMic, &active,
+                                                   &activate_by_user));
+  EXPECT_TRUE(active);
+  EXPECT_TRUE(activate_by_user);
+
+  audio_pref_handler_->SetDeviceActive(kHeadphone, true, false);
+  EXPECT_TRUE(audio_pref_handler_->GetDeviceActive(kHeadphone, &active,
+                                                   &activate_by_user));
+  EXPECT_TRUE(active);
+  EXPECT_FALSE(activate_by_user);
+
+  audio_pref_handler_->SetDeviceActive(kHDMIOutput, false, false);
+  EXPECT_TRUE(audio_pref_handler_->GetDeviceActive(kHDMIOutput, &active,
+                                                   &activate_by_user));
+  EXPECT_FALSE(active);
 }
 
 }  // namespace chromeos