Remove the wave based audio capture implementation for Windows

media/audio/audio_manager_unittest.cc

Index: media/audio/audio_manager_unittest.cc
diff --git a/media/audio/audio_manager_unittest.cc b/media/audio/audio_manager_unittest.cc
index 75925150e36ca1481162ad7e750e5c3471a574de..7635e645160c283a868ffffa39d56cf9c0cae6e1 100644
--- a/media/audio/audio_manager_unittest.cc
+++ b/media/audio/audio_manager_unittest.cc
@@ -31,7 +31,6 @@
 #if defined(OS_WIN)
 #include "base/win/scoped_com_initializer.h"
 #include "media/audio/win/audio_manager_win.h"
-#include "media/audio/win/wavein_input_win.h"
 #endif
 
 #if defined(USE_PULSEAUDIO)
@@ -233,37 +232,6 @@ class AudioManagerTest : public ::testing::Test {
   AudioManagerTest() { CreateAudioManagerForTesting(); }
   ~AudioManagerTest() override {}
 
-#if defined(OS_WIN)
-  bool SetMMDeviceEnumeration() {
-    AudioManagerWin* amw = static_cast<AudioManagerWin*>(audio_manager_.get());
-    // Windows Wave is used as default if Windows XP was detected =>
-    // return false since MMDevice is not supported on XP.
-    if (amw->enumeration_type() == AudioManagerWin::kWaveEnumeration)
-      return false;
-
-    amw->SetEnumerationType(AudioManagerWin::kMMDeviceEnumeration);
-    return true;
-  }
-
-  void SetWaveEnumeration() {
-    AudioManagerWin* amw = static_cast<AudioManagerWin*>(audio_manager_.get());
-    amw->SetEnumerationType(AudioManagerWin::kWaveEnumeration);
-  }
-
-  std::string GetDeviceIdFromPCMWaveInAudioInputStream(
-      const std::string& device_id) {
-    AudioManagerWin* amw = static_cast<AudioManagerWin*>(audio_manager_.get());
-    AudioParameters parameters(
-        AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
-        AudioParameters::kAudioCDSampleRate, 16,
-        1024);
-    std::unique_ptr<PCMWaveInAudioInputStream> stream(
-        static_cast<PCMWaveInAudioInputStream*>(
-            amw->CreatePCMWaveInAudioInputStream(parameters, device_id)));
-    return stream.get() ? stream->device_id_ : std::string();
-  }
-#endif
-
   // Helper method which verifies that the device list starts with a valid
   // default record followed by non-default device names.
   static void CheckDeviceDescriptions(
@@ -479,11 +447,6 @@ TEST_F(AudioManagerTest, EnumerateInputDevicesWinMMDevice) {
   ABORT_AUDIO_TEST_IF_NOT(InputDevicesAvailable());
 
   AudioDeviceDescriptions device_descriptions;
-  if (!SetMMDeviceEnumeration()) {
-    // Usage of MMDevice will fail on XP and lower.
-    LOG(WARNING) << "MM device enumeration is not supported.";
-    return;
-  }
   audio_manager_->GetAudioInputDeviceDescriptions(&device_descriptions);
   CheckDeviceDescriptions(device_descriptions);
 }
@@ -492,79 +455,9 @@ TEST_F(AudioManagerTest, EnumerateOutputDevicesWinMMDevice) {
   ABORT_AUDIO_TEST_IF_NOT(OutputDevicesAvailable());
 
   AudioDeviceDescriptions device_descriptions;
-  if (!SetMMDeviceEnumeration()) {
-    // Usage of MMDevice will fail on XP and lower.
-    LOG(WARNING) << "MM device enumeration is not supported.";
-    return;
-  }
-  audio_manager_->GetAudioOutputDeviceDescriptions(&device_descriptions);
-  CheckDeviceDescriptions(device_descriptions);
-}
-
-// Override default enumeration API and force usage of Windows Wave.
-// This test will run on Windows XP, Windows Vista and Windows 7.
-TEST_F(AudioManagerTest, EnumerateInputDevicesWinWave) {
-  ABORT_AUDIO_TEST_IF_NOT(InputDevicesAvailable());
-
-  AudioDeviceDescriptions device_descriptions;
-  SetWaveEnumeration();
-  audio_manager_->GetAudioInputDeviceDescriptions(&device_descriptions);
-  CheckDeviceDescriptions(device_descriptions);
-}
-
-TEST_F(AudioManagerTest, EnumerateOutputDevicesWinWave) {
-  ABORT_AUDIO_TEST_IF_NOT(OutputDevicesAvailable());
-
-  AudioDeviceDescriptions device_descriptions;
-  SetWaveEnumeration();
   audio_manager_->GetAudioOutputDeviceDescriptions(&device_descriptions);
   CheckDeviceDescriptions(device_descriptions);
 }
-
-TEST_F(AudioManagerTest, WinXPDeviceIdUnchanged) {
-  ABORT_AUDIO_TEST_IF_NOT(InputDevicesAvailable());
-
-  AudioDeviceDescriptions xp_device_descriptions;
-  SetWaveEnumeration();
-  audio_manager_->GetAudioInputDeviceDescriptions(&xp_device_descriptions);
-  CheckDeviceDescriptions(xp_device_descriptions);
-
-  // Device ID should remain unchanged, including the default device ID.
-  for (const auto& description : xp_device_descriptions) {
-    EXPECT_EQ(description.unique_id,
-              GetDeviceIdFromPCMWaveInAudioInputStream(description.unique_id));
-  }
-}
-
-TEST_F(AudioManagerTest, ConvertToWinXPInputDeviceId) {
-  ABORT_AUDIO_TEST_IF_NOT(InputDevicesAvailable());
-
-  if (!SetMMDeviceEnumeration()) {
-    // Usage of MMDevice will fail on XP and lower.
-    LOG(WARNING) << "MM device enumeration is not supported.";
-    return;
-  }
-
-  AudioDeviceDescriptions device_descriptions;
-  audio_manager_->GetAudioInputDeviceDescriptions(&device_descriptions);
-  CheckDeviceDescriptions(device_descriptions);
-
-  for (AudioDeviceDescriptions::iterator i = device_descriptions.begin();
-       i != device_descriptions.end(); ++i) {
-    std::string converted_id =
-        GetDeviceIdFromPCMWaveInAudioInputStream(i->unique_id);
-    if (i == device_descriptions.begin()) {
-      // The first in the list is the default device ID, which should not be
-      // changed when passed to PCMWaveInAudioInputStream.
-      EXPECT_EQ(i->unique_id, converted_id);
-    } else {
-      // MMDevice-style device IDs should be converted to WaveIn-style device
-      // IDs.
-      EXPECT_NE(i->unique_id, converted_id);
-    }
-  }
-}
-
 #endif  // defined(OS_WIN)
 
 #if defined(USE_PULSEAUDIO)