Supports multiple active input/output audio nodes in CrasAudioHandler.

extensions/shell/browser/shell_audio_controller_chromeos_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 "extensions/shell/browser/shell_audio_controller_chromeos.h"
 
 #include "base/macros.h"
 #include "chromeos/audio/audio_device.h"
 #include "chromeos/audio/cras_audio_handler.h"
 #include "chromeos/dbus/audio_node.h"
@@ skipping 79 matching lines @@
 
   // AudioDevice gives the headphone jack a higher priority than the internal
   // speaker and an external mic a higher priority than the internal mic, so we
   // should start out favoring headphones and the external mic.
   AudioNodeList all_nodes;
   all_nodes.push_back(internal_speaker);
   all_nodes.push_back(internal_mic);
   all_nodes.push_back(headphone);
   all_nodes.push_back(external_mic);
   audio_client_->SetAudioNodesAndNotifyObserversForTesting(all_nodes);
-  EXPECT_EQ(headphone.id, audio_handler_->GetActiveOutputNode());
-  EXPECT_EQ(external_mic.id, audio_handler_->GetActiveInputNode());
+  EXPECT_EQ(headphone.id, audio_handler_->GetPrimaryActiveOutputNode());
+  EXPECT_EQ(external_mic.id, audio_handler_->GetPrimaryActiveInputNode());
 
   // Unplug the headphones and mic and check that we switch to the internal
   // devices.
   AudioNodeList internal_nodes;
   internal_nodes.push_back(internal_speaker);
   internal_nodes.push_back(internal_mic);
   audio_client_->SetAudioNodesAndNotifyObserversForTesting(internal_nodes);
-  EXPECT_EQ(internal_speaker.id, audio_handler_->GetActiveOutputNode());
-  EXPECT_EQ(internal_mic.id, audio_handler_->GetActiveInputNode());
+  EXPECT_EQ(internal_speaker.id, audio_handler_->GetPrimaryActiveOutputNode());
+  EXPECT_EQ(internal_mic.id, audio_handler_->GetPrimaryActiveInputNode());
 
   // Switch back to the external devices. Mark the previously-activated internal
   // devices as being active so CrasAudioHandler doesn't complain.
   SetNodeActive(&all_nodes, internal_speaker.id, true);
   SetNodeActive(&all_nodes, internal_mic.id, true);
   audio_client_->SetAudioNodesAndNotifyObserversForTesting(all_nodes);
-  EXPECT_EQ(headphone.id, audio_handler_->GetActiveOutputNode());
-  EXPECT_EQ(external_mic.id, audio_handler_->GetActiveInputNode());
+  EXPECT_EQ(headphone.id, audio_handler_->GetPrimaryActiveOutputNode());
+  EXPECT_EQ(external_mic.id, audio_handler_->GetPrimaryActiveInputNode());
 }
 
 // Tests that active audio devices are unmuted and set to 100% volume.
 TEST_F(ShellAudioControllerTest, MaxVolume) {
   AudioNodeList nodes;
   nodes.push_back(CreateNode(chromeos::AUDIO_TYPE_INTERNAL_SPEAKER));
   nodes.push_back(CreateNode(chromeos::AUDIO_TYPE_INTERNAL_MIC));
   audio_client_->SetAudioNodesAndNotifyObserversForTesting(nodes);
 
   EXPECT_FALSE(audio_handler_->IsOutputMuted());
   EXPECT_FALSE(audio_handler_->IsInputMuted());
   EXPECT_EQ(100, audio_handler_->GetOutputVolumePercent());
   EXPECT_EQ(100, audio_handler_->GetInputGainPercent());
 }
 
 }  // namespace extensions