Revert 272884 "reland 260073013: Added automatic mode to FakeInp..."

trunk/src/content/browser/renderer_host/media/audio_input_device_manager.cc

Index: trunk/src/content/browser/renderer_host/media/audio_input_device_manager.cc
===================================================================
--- trunk/src/content/browser/renderer_host/media/audio_input_device_manager.cc	(revision 272929)
+++ trunk/src/content/browser/renderer_host/media/audio_input_device_manager.cc	(working copy)
@@ -8,6 +8,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/media_stream_request.h"
+#include "media/audio/audio_device_name.h"
 #include "media/audio/audio_input_ipc.h"
 #include "media/audio/audio_manager_base.h"
 #include "media/audio/audio_parameters.h"
@@ -29,6 +30,14 @@
       next_capture_session_id_(kFirstSessionId),
       use_fake_device_(false),
       audio_manager_(audio_manager) {
+  // TODO(xians): Remove this fake_device after the unittests do not need it.
+  StreamDeviceInfo fake_device(MEDIA_DEVICE_AUDIO_CAPTURE,
+                               media::AudioManagerBase::kDefaultDeviceName,
+                               media::AudioManagerBase::kDefaultDeviceId,
+                               44100, media::CHANNEL_LAYOUT_STEREO,
+                               0);
+  fake_device.session_id = kFakeOpenSessionId;
+  devices_.push_back(fake_device);
 }
 
 AudioInputDeviceManager::~AudioInputDeviceManager() {
@@ -114,18 +123,19 @@
   SCOPED_UMA_HISTOGRAM_TIMER(
       "Media.AudioInputDeviceManager.EnumerateOnDeviceThreadTime");
   DCHECK(IsOnDeviceThread());
-  DCHECK_EQ(MEDIA_DEVICE_AUDIO_CAPTURE, stream_type);
 
   media::AudioDeviceNames device_names;
-  if (use_fake_device_) {
-    // Use the fake devices.
-    GetFakeDeviceNames(&device_names);
-  } else {
-    // Enumerate the devices on the OS.
-    // AudioManager is guaranteed to outlive MediaStreamManager in
-    // BrowserMainloop.
-    media::AudioDeviceNames device_names;
-    audio_manager_->GetAudioInputDeviceNames(&device_names);
+
+  switch (stream_type) {
+    case MEDIA_DEVICE_AUDIO_CAPTURE:
+      // AudioManager is guaranteed to outlive MediaStreamManager in
+      // BrowserMainloop.
+      audio_manager_->GetAudioInputDeviceNames(&device_names);
+      break;
+
+    default:
+      NOTREACHED();
+      break;
   }
 
   scoped_ptr<StreamDeviceInfoArray> devices(new StreamDeviceInfoArray());
@@ -136,6 +146,14 @@
         stream_type, it->device_name, it->unique_id));
   }
 
+  // If the |use_fake_device_| flag is on, inject the fake device if there is
+  // no available device on the OS.
+  if (use_fake_device_ && devices->empty()) {
+    devices->push_back(StreamDeviceInfo(
+        stream_type, media::AudioManagerBase::kDefaultDeviceName,
+        media::AudioManagerBase::kDefaultDeviceId));
+  }
+
   // Return the device list through the listener by posting a task on
   // IO thread since MediaStreamManager handles the callback asynchronously.
   BrowserThread::PostTask(
@@ -237,18 +255,4 @@
   return devices_.end();
 }
 
-void AudioInputDeviceManager::GetFakeDeviceNames(
-    media::AudioDeviceNames* device_names) {
-  static const char kFakeDeviceName1[] = "Fake Audio 1";
-  static const char kFakeDeviceId1[] = "fake_audio_1";
-  static const char kFakeDeviceName2[] = "Fake Audio 2";
-  static const char kFakeDeviceId2[] = "fake_audio_2";
-  DCHECK(device_names->empty());
-  DCHECK(use_fake_device_);
-  device_names->push_back(media::AudioDeviceName(kFakeDeviceName1,
-                                                 kFakeDeviceId1));
-  device_names->push_back(media::AudioDeviceName(kFakeDeviceName2,
-                                                 kFakeDeviceId2));
-}
-
 }  // namespace content