Refactored DataBuffer to use unix_hacker style methods.

media/audio/linux/alsa_output_unittest.cc

 // Copyright (c) 2012 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 "base/message_loop.h"
 #include "base/strings/stringprintf.h"
 #include "media/audio/linux/alsa_output.h"
 #include "media/audio/linux/alsa_wrapper.h"
 #include "media/audio/linux/audio_manager_linux.h"
 #include "media/base/data_buffer.h"
@@ skipping 14 matching lines @@
 using testing::Return;
 using testing::SetArgumentPointee;
 using testing::StrictMock;
 using testing::StrEq;
 using testing::Unused;
 
 namespace media {
 
 class MockAlsaWrapper : public AlsaWrapper {
  public:
-  MOCK_METHOD3(DeviceNameHint, int(int card,
-                                   const char* iface,
-                                   void*** hints));
+  MOCK_METHOD3(DeviceNameHint, int(int card, const char* iface, void*** hints));
   MOCK_METHOD2(DeviceNameGetHint, char*(const void* hint, const char* id));
   MOCK_METHOD1(DeviceNameFreeHint, int(void** hints));
 
   MOCK_METHOD4(PcmOpen, int(snd_pcm_t** handle, const char* name,
                             snd_pcm_stream_t stream, int mode));
   MOCK_METHOD1(PcmClose, int(snd_pcm_t* handle));
   MOCK_METHOD1(PcmPrepare, int(snd_pcm_t* handle));
   MOCK_METHOD1(PcmDrop, int(snd_pcm_t* handle));
   MOCK_METHOD2(PcmDelay, int(snd_pcm_t* handle, snd_pcm_sframes_t* delay));
-  MOCK_METHOD3(PcmWritei, snd_pcm_sframes_t(snd_pcm_t* handle,
-                                            const void* buffer,
-                                            snd_pcm_uframes_t size));
-  MOCK_METHOD3(PcmReadi, snd_pcm_sframes_t(snd_pcm_t* handle,
-                                           void* buffer,
+  MOCK_METHOD3(PcmWritei,
+               snd_pcm_sframes_t(snd_pcm_t* handle, const void* buffer,
+                                 snd_pcm_uframes_t size));
+  MOCK_METHOD3(PcmReadi, snd_pcm_sframes_t(snd_pcm_t* handle, void* buffer,
                                            snd_pcm_uframes_t size));
   MOCK_METHOD3(PcmRecover, int(snd_pcm_t* handle, int err, int silent));
-  MOCK_METHOD7(PcmSetParams, int(snd_pcm_t* handle, snd_pcm_format_t format,
-                                 snd_pcm_access_t access, unsigned int channels,
-                                 unsigned int rate, int soft_resample,
-                                 unsigned int latency));
-  MOCK_METHOD3(PcmGetParams, int(snd_pcm_t* handle,
-                                 snd_pcm_uframes_t* buffer_size,
-                                 snd_pcm_uframes_t* period_size));
+  MOCK_METHOD7(PcmSetParams,
+               int(snd_pcm_t* handle, snd_pcm_format_t format,
+                   snd_pcm_access_t access, unsigned int channels,
+                   unsigned int rate, int soft_resample, unsigned int latency));
+  MOCK_METHOD3(PcmGetParams,
+               int(snd_pcm_t* handle, snd_pcm_uframes_t* buffer_size,
+                   snd_pcm_uframes_t* period_size));
   MOCK_METHOD1(PcmName, const char*(snd_pcm_t* handle));
   MOCK_METHOD1(PcmAvailUpdate, snd_pcm_sframes_t(snd_pcm_t* handle));
   MOCK_METHOD1(PcmState, snd_pcm_state_t(snd_pcm_t* handle));
   MOCK_METHOD1(PcmStart, int(snd_pcm_t* handle));
 
   MOCK_METHOD1(StrError, const char*(int errnum));
 };
 
 class MockAudioSourceCallback : public AudioOutputStream::AudioSourceCallback {
  public:
-  MOCK_METHOD2(OnMoreData, int(AudioBus* audio_bus,
-                               AudioBuffersState buffers_state));
-  MOCK_METHOD3(OnMoreIOData, int(AudioBus* source,
-                                 AudioBus* dest,
+  MOCK_METHOD2(OnMoreData,
+               int(AudioBus* audio_bus, AudioBuffersState buffers_state));
+  MOCK_METHOD3(OnMoreIOData, int(AudioBus* source, AudioBus* dest,
                                  AudioBuffersState buffers_state));
   MOCK_METHOD1(OnError, void(AudioOutputStream* stream));
 };
 
 class MockAudioManagerLinux : public AudioManagerLinux {
  public:
   MOCK_METHOD0(Init, void());
   MOCK_METHOD0(HasAudioOutputDevices, bool());
   MOCK_METHOD0(HasAudioInputDevices, bool());
-  MOCK_METHOD1(MakeLinearOutputStream, AudioOutputStream*(
-      const AudioParameters& params));
-  MOCK_METHOD2(MakeLowLatencyOutputStream, AudioOutputStream*(
-      const AudioParameters& params, const std::string& input_device_id));
-  MOCK_METHOD2(MakeLowLatencyInputStream, AudioInputStream*(
-      const AudioParameters& params, const std::string& device_id));
+  MOCK_METHOD1(MakeLinearOutputStream,
+               AudioOutputStream*(const AudioParameters& params));
+  MOCK_METHOD2(MakeLowLatencyOutputStream,
+               AudioOutputStream*(const AudioParameters& params,
+                                  const std::string& input_device_id));
+  MOCK_METHOD2(MakeLowLatencyInputStream,
+               AudioInputStream*(const AudioParameters& params,
+                                 const std::string& device_id));
 
   // We need to override this function in order to skip the checking the number
   // of active output streams. It is because the number of active streams
   // is managed inside MakeAudioOutputStream, and we don't use
   // MakeAudioOutputStream to create the stream in the tests.
   virtual void ReleaseOutputStream(AudioOutputStream* stream) OVERRIDE {
     DCHECK(stream);
     delete stream;
   }
 
   // We don't mock this method since all tests will do the same thing
   // and use the current message loop.
   virtual scoped_refptr<base::MessageLoopProxy> GetMessageLoop() OVERRIDE {
     return base::MessageLoop::current()->message_loop_proxy();
   }
 };
 
 class AlsaPcmOutputStreamTest : public testing::Test {
  protected:
   AlsaPcmOutputStreamTest() {
     mock_manager_.reset(new StrictMock<MockAudioManagerLinux>());
   }
 
-  virtual ~AlsaPcmOutputStreamTest() {
-  }
+  virtual ~AlsaPcmOutputStreamTest() {}
 
   AlsaPcmOutputStream* CreateStream(ChannelLayout layout) {
     return CreateStream(layout, kTestFramesPerPacket);
   }
 
   AlsaPcmOutputStream* CreateStream(ChannelLayout layout,
                                     int32 samples_per_packet) {
     AudioParameters params(kTestFormat, layout, kTestSampleRate,
                            kTestBitsPerSample, samples_per_packet);
-    return new AlsaPcmOutputStream(kTestDeviceName,
-                                   params,
-                                   &mock_alsa_wrapper_,
+    return new AlsaPcmOutputStream(kTestDeviceName, params, &mock_alsa_wrapper_,
                                    mock_manager_.get());
   }
 
   // Helper function to malloc the string returned by DeviceNameHint for NAME.
   static char* EchoHint(const void* name, Unused) {
     return strdup(static_cast<const char*>(name));
   }
 
   // Helper function to malloc the string returned by DeviceNameHint for IOID.
-  static char* OutputHint(Unused, Unused) {
-    return strdup("Output");
-  }
+  static char* OutputHint(Unused, Unused) { return strdup("Output"); }
 
   // Helper function to initialize |test_stream->buffer_|. Must be called
   // in all tests that use buffer_ without opening the stream.
   void InitBuffer(AlsaPcmOutputStream* test_stream) {
     DCHECK(test_stream);
     packet_ = new media::DataBuffer(kTestPacketSize);
-    packet_->SetDataSize(kTestPacketSize);
+    packet_->set_data_size(kTestPacketSize);
     test_stream->buffer_.reset(new media::SeekableBuffer(0, kTestPacketSize));
     test_stream->buffer_->Append(packet_.get());
   }
 
   static const ChannelLayout kTestChannelLayout;
   static const int kTestSampleRate;
   static const int kTestBitsPerSample;
   static const int kTestBytesPerFrame;
   static const AudioParameters::Format kTestFormat;
   static const char kTestDeviceName[];
@@ skipping 40 matching lines @@
 const int AlsaPcmOutputStreamTest::kTestFailedErrno = -EACCES;
 snd_pcm_t* const AlsaPcmOutputStreamTest::kFakeHandle =
     reinterpret_cast<snd_pcm_t*>(1);
 
 char AlsaPcmOutputStreamTest::kSurround40[] = "surround40:CARD=foo,DEV=0";
 char AlsaPcmOutputStreamTest::kSurround41[] = "surround41:CARD=foo,DEV=0";
 char AlsaPcmOutputStreamTest::kSurround50[] = "surround50:CARD=foo,DEV=0";
 char AlsaPcmOutputStreamTest::kSurround51[] = "surround51:CARD=foo,DEV=0";
 char AlsaPcmOutputStreamTest::kSurround70[] = "surround70:CARD=foo,DEV=0";
 char AlsaPcmOutputStreamTest::kSurround71[] = "surround71:CARD=foo,DEV=0";
-void* AlsaPcmOutputStreamTest::kFakeHints[] = {
-    kSurround40, kSurround41, kSurround50, kSurround51,
-    kSurround70, kSurround71, NULL };
+void* AlsaPcmOutputStreamTest::kFakeHints[] = {kSurround40, kSurround41,
+                                               kSurround50, kSurround51,
+                                               kSurround70, kSurround71, NULL};
 
 // Custom action to clear a memory buffer.
-ACTION(ClearBuffer) {
-  arg0->Zero();
-}
+ACTION(ClearBuffer) { arg0->Zero(); }
 
 TEST_F(AlsaPcmOutputStreamTest, ConstructedState) {
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   EXPECT_EQ(AlsaPcmOutputStream::kCreated, test_stream->state());
   test_stream->Close();
 
   // Should support mono.
   test_stream = CreateStream(CHANNEL_LAYOUT_MONO);
   EXPECT_EQ(AlsaPcmOutputStream::kCreated, test_stream->state());
   test_stream->Close();
 
   // Should support multi-channel.
   test_stream = CreateStream(CHANNEL_LAYOUT_SURROUND);
   EXPECT_EQ(AlsaPcmOutputStream::kCreated, test_stream->state());
   test_stream->Close();
 
   // Bad bits per sample.
   AudioParameters bad_bps_params(kTestFormat, kTestChannelLayout,
                                  kTestSampleRate, kTestBitsPerSample - 1,
                                  kTestFramesPerPacket);
-  test_stream = new AlsaPcmOutputStream(kTestDeviceName,
-                                        bad_bps_params,
-                                        &mock_alsa_wrapper_,
-                                        mock_manager_.get());
+  test_stream =
+      new AlsaPcmOutputStream(kTestDeviceName, bad_bps_params,
+                              &mock_alsa_wrapper_, mock_manager_.get());
   EXPECT_EQ(AlsaPcmOutputStream::kInError, test_stream->state());
   test_stream->Close();
 
   // Bad format.
-  AudioParameters bad_format_params(
-      AudioParameters::AUDIO_LAST_FORMAT, kTestChannelLayout, kTestSampleRate,
-      kTestBitsPerSample, kTestFramesPerPacket);
-  test_stream = new AlsaPcmOutputStream(kTestDeviceName,
-                                        bad_format_params,
-                                        &mock_alsa_wrapper_,
-                                        mock_manager_.get());
+  AudioParameters bad_format_params(AudioParameters::AUDIO_LAST_FORMAT,
+                                    kTestChannelLayout, kTestSampleRate,
+                                    kTestBitsPerSample, kTestFramesPerPacket);
+  test_stream =
+      new AlsaPcmOutputStream(kTestDeviceName, bad_format_params,
+                              &mock_alsa_wrapper_, mock_manager_.get());
   EXPECT_EQ(AlsaPcmOutputStream::kInError, test_stream->state());
   test_stream->Close();
 }
 
 TEST_F(AlsaPcmOutputStreamTest, LatencyFloor) {
-  const double kMicrosPerFrame =
-      static_cast<double>(1000000) / kTestSampleRate;
+  const double kMicrosPerFrame = static_cast<double>(1000000) / kTestSampleRate;
   const double kPacketFramesInMinLatency =
       AlsaPcmOutputStream::kMinLatencyMicros / kMicrosPerFrame / 2.0;
 
   // Test that packets which would cause a latency under less than
   // AlsaPcmOutputStream::kMinLatencyMicros will get clipped to
   // AlsaPcmOutputStream::kMinLatencyMicros,
   EXPECT_CALL(mock_alsa_wrapper_, PcmOpen(_, _, _, _))
-      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle),
-                      Return(0)));
-  EXPECT_CALL(mock_alsa_wrapper_,
-              PcmSetParams(_, _, _, _, _, _,
-                           AlsaPcmOutputStream::kMinLatencyMicros))
+      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle), Return(0)));
+  EXPECT_CALL(
+      mock_alsa_wrapper_,
+      PcmSetParams(_, _, _, _, _, _, AlsaPcmOutputStream::kMinLatencyMicros))
       .WillOnce(Return(0));
-  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(_, _, _))
-      .WillOnce(DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
-                      SetArgumentPointee<2>(kTestFramesPerPacket / 2),
-                      Return(0)));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(_, _, _)).WillOnce(
+      DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
+            SetArgumentPointee<2>(kTestFramesPerPacket / 2), Return(0)));
 
-  AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout,
-                                                  kPacketFramesInMinLatency);
+  AlsaPcmOutputStream* test_stream =
+      CreateStream(kTestChannelLayout, kPacketFramesInMinLatency);
   ASSERT_TRUE(test_stream->Open());
 
   // Now close it and test that everything was released.
   EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle)).WillOnce(Return(0));
   EXPECT_CALL(mock_alsa_wrapper_, PcmName(kFakeHandle))
       .WillOnce(Return(kTestDeviceName));
   test_stream->Close();
 
   Mock::VerifyAndClear(&mock_alsa_wrapper_);
   Mock::VerifyAndClear(mock_manager_.get());
 
   // Test that having more packets ends up with a latency based on packet size.
   const int kOverMinLatencyPacketSize = kPacketFramesInMinLatency + 1;
   int64 expected_micros = AlsaPcmOutputStream::FramesToTimeDelta(
       kOverMinLatencyPacketSize * 2, kTestSampleRate).InMicroseconds();
 
   EXPECT_CALL(mock_alsa_wrapper_, PcmOpen(_, _, _, _))
       .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle), Return(0)));
   EXPECT_CALL(mock_alsa_wrapper_,
               PcmSetParams(_, _, _, _, _, _, expected_micros))
       .WillOnce(Return(0));
-  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(_, _, _))
-      .WillOnce(DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
-                      SetArgumentPointee<2>(kTestFramesPerPacket / 2),
-                      Return(0)));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(_, _, _)).WillOnce(
+      DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
+            SetArgumentPointee<2>(kTestFramesPerPacket / 2), Return(0)));
 
-  test_stream = CreateStream(kTestChannelLayout,
-                             kOverMinLatencyPacketSize);
+  test_stream = CreateStream(kTestChannelLayout, kOverMinLatencyPacketSize);
   ASSERT_TRUE(test_stream->Open());
 
   // Now close it and test that everything was released.
-  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle))
-      .WillOnce(Return(0));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle)).WillOnce(Return(0));
   EXPECT_CALL(mock_alsa_wrapper_, PcmName(kFakeHandle))
       .WillOnce(Return(kTestDeviceName));
   test_stream->Close();
 
   Mock::VerifyAndClear(&mock_alsa_wrapper_);
   Mock::VerifyAndClear(mock_manager_.get());
 }
 
 TEST_F(AlsaPcmOutputStreamTest, OpenClose) {
   int64 expected_micros = AlsaPcmOutputStream::FramesToTimeDelta(
       2 * kTestFramesPerPacket, kTestSampleRate).InMicroseconds();
 
   // Open() call opens the playback device, sets the parameters, posts a task
   // with the resulting configuration data, and transitions the object state to
   // kIsOpened.
   EXPECT_CALL(mock_alsa_wrapper_,
-              PcmOpen(_, StrEq(kTestDeviceName),
-                      SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK))
-      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle),
-                      Return(0)));
+              PcmOpen(_, StrEq(kTestDeviceName), SND_PCM_STREAM_PLAYBACK,
+                      SND_PCM_NONBLOCK))
+      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle), Return(0)));
   EXPECT_CALL(mock_alsa_wrapper_,
-              PcmSetParams(kFakeHandle,
-                           SND_PCM_FORMAT_U8,
-                           SND_PCM_ACCESS_RW_INTERLEAVED,
-                           ChannelLayoutToChannelCount(kTestChannelLayout),
-                           kTestSampleRate,
-                           1,
-                           expected_micros))
-      .WillOnce(Return(0));
-  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(kFakeHandle, _, _))
-      .WillOnce(DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
-                      SetArgumentPointee<2>(kTestFramesPerPacket / 2),
-                      Return(0)));
+              PcmSetParams(
+                  kFakeHandle, SND_PCM_FORMAT_U8, SND_PCM_ACCESS_RW_INTERLEAVED,
+                  ChannelLayoutToChannelCount(kTestChannelLayout),
+                  kTestSampleRate, 1, expected_micros)).WillOnce(Return(0));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(kFakeHandle, _, _)).WillOnce(
+      DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
+            SetArgumentPointee<2>(kTestFramesPerPacket / 2), Return(0)));
 
   // Open the stream.
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   ASSERT_TRUE(test_stream->Open());
 
   EXPECT_EQ(AlsaPcmOutputStream::kIsOpened, test_stream->state());
   EXPECT_EQ(kFakeHandle, test_stream->playback_handle_);
   EXPECT_EQ(kTestFramesPerPacket, test_stream->frames_per_packet_);
   EXPECT_TRUE(test_stream->buffer_.get());
   EXPECT_FALSE(test_stream->stop_stream_);
 
   // Now close it and test that everything was released.
-  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle))
-      .WillOnce(Return(0));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle)).WillOnce(Return(0));
   EXPECT_CALL(mock_alsa_wrapper_, PcmName(kFakeHandle))
       .WillOnce(Return(kTestDeviceName));
   test_stream->Close();
 }
 
 TEST_F(AlsaPcmOutputStreamTest, PcmOpenFailed) {
   EXPECT_CALL(mock_alsa_wrapper_, PcmOpen(_, _, _, _))
       .WillOnce(Return(kTestFailedErrno));
   EXPECT_CALL(mock_alsa_wrapper_, StrError(kTestFailedErrno))
       .WillOnce(Return(kDummyMessage));
 
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   ASSERT_FALSE(test_stream->Open());
   ASSERT_EQ(AlsaPcmOutputStream::kInError, test_stream->state());
 
   // Ensure internal state is set for a no-op stream if PcmOpen() failes.
   EXPECT_TRUE(test_stream->stop_stream_);
   EXPECT_TRUE(test_stream->playback_handle_ == NULL);
   EXPECT_FALSE(test_stream->buffer_.get());
 
   // Close the stream since we opened it to make destruction happy.
   test_stream->Close();
 }
 
 TEST_F(AlsaPcmOutputStreamTest, PcmSetParamsFailed) {
   EXPECT_CALL(mock_alsa_wrapper_, PcmOpen(_, _, _, _))
-      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle),
-                      Return(0)));
+      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle), Return(0)));
   EXPECT_CALL(mock_alsa_wrapper_, PcmSetParams(_, _, _, _, _, _, _))
       .WillOnce(Return(kTestFailedErrno));
-  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle))
-      .WillOnce(Return(0));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle)).WillOnce(Return(0));
   EXPECT_CALL(mock_alsa_wrapper_, PcmName(kFakeHandle))
       .WillOnce(Return(kTestDeviceName));
   EXPECT_CALL(mock_alsa_wrapper_, StrError(kTestFailedErrno))
       .WillOnce(Return(kDummyMessage));
 
   // If open fails, the stream stays in kCreated because it has effectively had
   // no changes.
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   ASSERT_FALSE(test_stream->Open());
   EXPECT_EQ(AlsaPcmOutputStream::kInError, test_stream->state());
 
   // Ensure internal state is set for a no-op stream if PcmSetParams() failes.
   EXPECT_TRUE(test_stream->stop_stream_);
   EXPECT_TRUE(test_stream->playback_handle_ == NULL);
   EXPECT_FALSE(test_stream->buffer_.get());
 
   // Close the stream since we opened it to make destruction happy.
   test_stream->Close();
 }
 
 TEST_F(AlsaPcmOutputStreamTest, StartStop) {
   // Open() call opens the playback device, sets the parameters, posts a task
   // with the resulting configuration data, and transitions the object state to
   // kIsOpened.
   EXPECT_CALL(mock_alsa_wrapper_, PcmOpen(_, _, _, _))
-      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle),
-                      Return(0)));
+      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle), Return(0)));
   EXPECT_CALL(mock_alsa_wrapper_, PcmSetParams(_, _, _, _, _, _, _))
       .WillOnce(Return(0));
-  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(_, _, _))
-      .WillOnce(DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
-                      SetArgumentPointee<2>(kTestFramesPerPacket / 2),
-                      Return(0)));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(_, _, _)).WillOnce(
+      DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
+            SetArgumentPointee<2>(kTestFramesPerPacket / 2), Return(0)));
 
   // Open the stream.
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   ASSERT_TRUE(test_stream->Open());
 
   // Expect Device setup.
-  EXPECT_CALL(mock_alsa_wrapper_, PcmDrop(kFakeHandle))
-      .WillOnce(Return(0));
-  EXPECT_CALL(mock_alsa_wrapper_, PcmPrepare(kFakeHandle))
-      .WillOnce(Return(0));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmDrop(kFakeHandle)).WillOnce(Return(0));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmPrepare(kFakeHandle)).WillOnce(Return(0));
 
   // Expect the pre-roll.
   MockAudioSourceCallback mock_callback;
   EXPECT_CALL(mock_alsa_wrapper_, PcmState(kFakeHandle))
       .WillRepeatedly(Return(SND_PCM_STATE_RUNNING));
   EXPECT_CALL(mock_alsa_wrapper_, PcmDelay(kFakeHandle, _))
       .WillRepeatedly(DoAll(SetArgumentPointee<1>(0), Return(0)));
   EXPECT_CALL(mock_callback, OnMoreData(_, _))
       .WillRepeatedly(DoAll(ClearBuffer(), Return(kTestFramesPerPacket)));
   EXPECT_CALL(mock_alsa_wrapper_, PcmWritei(kFakeHandle, _, _))
       .WillRepeatedly(Return(kTestFramesPerPacket));
 
   // Expect scheduling.
-  EXPECT_CALL(mock_alsa_wrapper_, PcmAvailUpdate(kFakeHandle))
-      .Times(AtLeast(2))
+  EXPECT_CALL(mock_alsa_wrapper_, PcmAvailUpdate(kFakeHandle)).Times(AtLeast(2))
       .WillRepeatedly(Return(kTestFramesPerPacket));
 
   test_stream->Start(&mock_callback);
   // Start() will issue a WriteTask() directly and then schedule the next one,
   // call Stop() immediately after to ensure we don't run the message loop
   // forever.
   test_stream->Stop();
   message_loop_.RunUntilIdle();
 
-  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle))
-      .WillOnce(Return(0));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle)).WillOnce(Return(0));
   EXPECT_CALL(mock_alsa_wrapper_, PcmName(kFakeHandle))
       .WillOnce(Return(kTestDeviceName));
   test_stream->Close();
 }
 
 TEST_F(AlsaPcmOutputStreamTest, WritePacket_FinishedPacket) {
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   InitBuffer(test_stream);
   test_stream->TransitionTo(AlsaPcmOutputStream::kIsOpened);
   test_stream->TransitionTo(AlsaPcmOutputStream::kIsPlaying);
 
   // Nothing should happen.  Don't set any expectations and Our strict mocks
   // should verify most of this.
 
   // Test empty buffer.
   test_stream->buffer_->Clear();
   test_stream->WritePacket();
   test_stream->Close();
 }
 
 TEST_F(AlsaPcmOutputStreamTest, WritePacket_NormalPacket) {
   // We need to open the stream before writing data to ALSA.
   EXPECT_CALL(mock_alsa_wrapper_, PcmOpen(_, _, _, _))
-      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle),
-                      Return(0)));
+      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle), Return(0)));
   EXPECT_CALL(mock_alsa_wrapper_, PcmSetParams(_, _, _, _, _, _, _))
       .WillOnce(Return(0));
-  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(_, _, _))
-      .WillOnce(DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
-                      SetArgumentPointee<2>(kTestFramesPerPacket / 2),
-                      Return(0)));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(_, _, _)).WillOnce(
+      DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
+            SetArgumentPointee<2>(kTestFramesPerPacket / 2), Return(0)));
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   ASSERT_TRUE(test_stream->Open());
   InitBuffer(test_stream);
   test_stream->TransitionTo(AlsaPcmOutputStream::kIsPlaying);
 
   // Write a little less than half the data.
-  int written = packet_->GetDataSize() / kTestBytesPerFrame / 2 - 1;
+  int written = packet_->get_data_size() / kTestBytesPerFrame / 2 - 1;
   EXPECT_CALL(mock_alsa_wrapper_, PcmAvailUpdate(kFakeHandle))
-        .WillOnce(Return(written));
-  EXPECT_CALL(mock_alsa_wrapper_, PcmWritei(kFakeHandle, packet_->GetData(), _))
       .WillOnce(Return(written));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmWritei(kFakeHandle, packet_->get_data(),
+                                            _)).WillOnce(Return(written));
 
   test_stream->WritePacket();
 
   ASSERT_EQ(test_stream->buffer_->forward_bytes(),
-            packet_->GetDataSize() - written * kTestBytesPerFrame);
+            packet_->get_data_size() - written * kTestBytesPerFrame);
 
   // Write the rest.
   EXPECT_CALL(mock_alsa_wrapper_, PcmAvailUpdate(kFakeHandle))
       .WillOnce(Return(kTestFramesPerPacket - written));
   EXPECT_CALL(mock_alsa_wrapper_,
               PcmWritei(kFakeHandle,
-                        packet_->GetData() + written * kTestBytesPerFrame,
-                        _))
-      .WillOnce(Return(packet_->GetDataSize() / kTestBytesPerFrame - written));
+                        packet_->get_data() + written * kTestBytesPerFrame, _))
+      .WillOnce(
+           Return(packet_->get_data_size() / kTestBytesPerFrame - written));
   test_stream->WritePacket();
   EXPECT_EQ(0, test_stream->buffer_->forward_bytes());
 
   // Now close it and test that everything was released.
-  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle))
-      .WillOnce(Return(0));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle)).WillOnce(Return(0));
   EXPECT_CALL(mock_alsa_wrapper_, PcmName(kFakeHandle))
       .WillOnce(Return(kTestDeviceName));
   test_stream->Close();
 }
 
 TEST_F(AlsaPcmOutputStreamTest, WritePacket_WriteFails) {
   // We need to open the stream before writing data to ALSA.
   EXPECT_CALL(mock_alsa_wrapper_, PcmOpen(_, _, _, _))
-      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle),
-                      Return(0)));
+      .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle), Return(0)));
   EXPECT_CALL(mock_alsa_wrapper_, PcmSetParams(_, _, _, _, _, _, _))
       .WillOnce(Return(0));
-  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(_, _, _))
-      .WillOnce(DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
-                      SetArgumentPointee<2>(kTestFramesPerPacket / 2),
-                      Return(0)));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmGetParams(_, _, _)).WillOnce(
+      DoAll(SetArgumentPointee<1>(kTestFramesPerPacket),
+            SetArgumentPointee<2>(kTestFramesPerPacket / 2), Return(0)));
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   ASSERT_TRUE(test_stream->Open());
   InitBuffer(test_stream);
   test_stream->TransitionTo(AlsaPcmOutputStream::kIsPlaying);
 
   // Fail due to a recoverable error and see that PcmRecover code path
   // continues normally.
   EXPECT_CALL(mock_alsa_wrapper_, PcmAvailUpdate(kFakeHandle))
       .WillOnce(Return(kTestFramesPerPacket));
   EXPECT_CALL(mock_alsa_wrapper_, PcmWritei(kFakeHandle, _, _))
       .WillOnce(Return(-EINTR));
   EXPECT_CALL(mock_alsa_wrapper_, PcmRecover(kFakeHandle, _, _))
       .WillOnce(Return(0));
 
   test_stream->WritePacket();
 
-  ASSERT_EQ(test_stream->buffer_->forward_bytes(), packet_->GetDataSize());
+  ASSERT_EQ(test_stream->buffer_->forward_bytes(), packet_->get_data_size());
 
   // Fail the next write, and see that stop_stream_ is set.
   EXPECT_CALL(mock_alsa_wrapper_, PcmAvailUpdate(kFakeHandle))
-        .WillOnce(Return(kTestFramesPerPacket));
+      .WillOnce(Return(kTestFramesPerPacket));
   EXPECT_CALL(mock_alsa_wrapper_, PcmWritei(kFakeHandle, _, _))
       .WillOnce(Return(kTestFailedErrno));
   EXPECT_CALL(mock_alsa_wrapper_, PcmRecover(kFakeHandle, _, _))
       .WillOnce(Return(kTestFailedErrno));
   EXPECT_CALL(mock_alsa_wrapper_, StrError(kTestFailedErrno))
       .WillOnce(Return(kDummyMessage));
   test_stream->WritePacket();
-  EXPECT_EQ(test_stream->buffer_->forward_bytes(), packet_->GetDataSize());
+  EXPECT_EQ(test_stream->buffer_->forward_bytes(), packet_->get_data_size());
   EXPECT_TRUE(test_stream->stop_stream_);
 
   // Now close it and test that everything was released.
-  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle))
-      .WillOnce(Return(0));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmClose(kFakeHandle)).WillOnce(Return(0));
   EXPECT_CALL(mock_alsa_wrapper_, PcmName(kFakeHandle))
       .WillOnce(Return(kTestDeviceName));
   test_stream->Close();
 }
 
 TEST_F(AlsaPcmOutputStreamTest, WritePacket_StopStream) {
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   InitBuffer(test_stream);
   test_stream->TransitionTo(AlsaPcmOutputStream::kIsOpened);
   test_stream->TransitionTo(AlsaPcmOutputStream::kIsPlaying);
@@ skipping 62 matching lines @@
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   InitBuffer(test_stream);
   test_stream->buffer_->Clear();
 
   // If ALSA has underrun then we should assume a delay of zero.
   MockAudioSourceCallback mock_callback;
   EXPECT_CALL(mock_alsa_wrapper_, PcmState(_))
       .WillOnce(Return(SND_PCM_STATE_XRUN));
   EXPECT_CALL(mock_alsa_wrapper_, PcmAvailUpdate(_))
       .WillRepeatedly(Return(0));  // Buffer is full.
-  EXPECT_CALL(mock_callback,
-              OnMoreData(_, AllOf(
-                  Field(&AudioBuffersState::pending_bytes, 0),
-                  Field(&AudioBuffersState::hardware_delay_bytes, 0))))
+  EXPECT_CALL(
+      mock_callback,
+      OnMoreData(_, AllOf(Field(&AudioBuffersState::pending_bytes, 0),
+                          Field(&AudioBuffersState::hardware_delay_bytes, 0))))
       .WillOnce(DoAll(ClearBuffer(), Return(kTestFramesPerPacket / 2)));
 
   bool source_exhausted;
   test_stream->set_source_callback(&mock_callback);
   test_stream->packet_size_ = kTestPacketSize;
   test_stream->BufferPacket(&source_exhausted);
 
   EXPECT_EQ(kTestPacketSize / 2, test_stream->buffer_->forward_bytes());
   EXPECT_FALSE(source_exhausted);
   test_stream->Close();
@@ skipping 13 matching lines @@
 
 TEST_F(AlsaPcmOutputStreamTest, AutoSelectDevice_DeviceSelect) {
   // Try channels from 1 -> 9. and see that we get the more specific surroundXX
   // device opened for channels 4-8.  For all other channels, the device should
   // default to |AlsaPcmOutputStream::kDefaultDevice|.  We should also not
   // downmix any channel in this case because downmixing is only defined for
   // channels 4-8, which we are guaranteeing to work.
   //
   // Note that the loop starts at "1", so the first parameter is ignored in
   // these arrays.
-  const char* kExpectedDeviceName[] = { NULL,
-                                        AlsaPcmOutputStream::kDefaultDevice,
-                                        AlsaPcmOutputStream::kDefaultDevice,
-                                        AlsaPcmOutputStream::kDefaultDevice,
-                                        kSurround40, kSurround50, kSurround51,
-                                        kSurround70, kSurround71,
-                                        AlsaPcmOutputStream::kDefaultDevice };
-  bool kExpectedDownmix[] = { false, false, false, false, false, true,
-                              false, false, false, false };
-  ChannelLayout kExpectedLayouts[] = { CHANNEL_LAYOUT_NONE,
-                                       CHANNEL_LAYOUT_MONO,
-                                       CHANNEL_LAYOUT_STEREO,
-                                       CHANNEL_LAYOUT_SURROUND,
-                                       CHANNEL_LAYOUT_4_0,
-                                       CHANNEL_LAYOUT_5_0,
-                                       CHANNEL_LAYOUT_5_1,
-                                       CHANNEL_LAYOUT_7_0,
-                                       CHANNEL_LAYOUT_7_1 };
-
+  const char* kExpectedDeviceName[] = {
+    NULL, AlsaPcmOutputStream::kDefaultDevice,
+    AlsaPcmOutputStream::kDefaultDevice, AlsaPcmOutputStream::kDefaultDevice,
+    kSurround40, kSurround50, kSurround51, kSurround70, kSurround71,
+    AlsaPcmOutputStream::kDefaultDevice
+  };
+  bool kExpectedDownmix[] = {false, false, false, false, false, true, false,
+                             false, false, false};
+  ChannelLayout kExpectedLayouts[] = {
+    CHANNEL_LAYOUT_NONE, CHANNEL_LAYOUT_MONO, CHANNEL_LAYOUT_STEREO,
+    CHANNEL_LAYOUT_SURROUND, CHANNEL_LAYOUT_4_0, CHANNEL_LAYOUT_5_0,
+    CHANNEL_LAYOUT_5_1, CHANNEL_LAYOUT_7_0, CHANNEL_LAYOUT_7_1
+  };
 
   for (int i = 1; i < 9; ++i) {
     if (i == 3 || i == 4 || i == 5)  // invalid number of channels
       continue;
     SCOPED_TRACE(base::StringPrintf("Attempting %d Channel", i));
 
     // Hints will only be grabbed for channel numbers that have non-default
     // devices associated with them.
     if (kExpectedDeviceName[i] != AlsaPcmOutputStream::kDefaultDevice) {
       // The DeviceNameHint and DeviceNameFreeHint need to be paired to avoid a
       // memory leak.
       EXPECT_CALL(mock_alsa_wrapper_, DeviceNameHint(_, _, _))
           .WillOnce(DoAll(SetArgumentPointee<2>(&kFakeHints[0]), Return(0)));
       EXPECT_CALL(mock_alsa_wrapper_, DeviceNameFreeHint(&kFakeHints[0]))
           .Times(1);
     }
 
     EXPECT_CALL(mock_alsa_wrapper_,
                 PcmOpen(_, StrEq(kExpectedDeviceName[i]), _, _))
         .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle), Return(0)));
-    EXPECT_CALL(mock_alsa_wrapper_,
-                PcmSetParams(kFakeHandle, _, _, i, _, _, _))
+    EXPECT_CALL(mock_alsa_wrapper_, PcmSetParams(kFakeHandle, _, _, i, _, _, _))
         .WillOnce(Return(0));
 
     // The parameters are specified by ALSA documentation, and are in constants
     // in the implementation files.
     EXPECT_CALL(mock_alsa_wrapper_, DeviceNameGetHint(_, StrEq("IOID")))
         .WillRepeatedly(Invoke(OutputHint));
     EXPECT_CALL(mock_alsa_wrapper_, DeviceNameGetHint(_, StrEq("NAME")))
         .WillRepeatedly(Invoke(EchoHint));
 
     AlsaPcmOutputStream* test_stream = CreateStream(kExpectedLayouts[i]);
@@ skipping 14 matching lines @@
   // operations should be as follows.  Assume the multi-channel device name is
   // surround50:
   //
   //   1) Try open "surround50"
   //   2) Try open "plug:surround50".
   //   3) Try open "default".
   //   4) Try open "plug:default".
   //   5) Give up trying to open.
   //
   const string first_try = kSurround50;
-  const string second_try = string(AlsaPcmOutputStream::kPlugPrefix) +
-                            kSurround50;
+  const string second_try =
+      string(AlsaPcmOutputStream::kPlugPrefix) + kSurround50;
   const string third_try = AlsaPcmOutputStream::kDefaultDevice;
   const string fourth_try = string(AlsaPcmOutputStream::kPlugPrefix) +
                             AlsaPcmOutputStream::kDefaultDevice;
 
   EXPECT_CALL(mock_alsa_wrapper_, DeviceNameHint(_, _, _))
       .WillOnce(DoAll(SetArgumentPointee<2>(&kFakeHints[0]), Return(0)));
-  EXPECT_CALL(mock_alsa_wrapper_, DeviceNameFreeHint(&kFakeHints[0]))
-      .Times(1);
+  EXPECT_CALL(mock_alsa_wrapper_, DeviceNameFreeHint(&kFakeHints[0])).Times(1);
   EXPECT_CALL(mock_alsa_wrapper_, DeviceNameGetHint(_, StrEq("IOID")))
       .WillRepeatedly(Invoke(OutputHint));
   EXPECT_CALL(mock_alsa_wrapper_, DeviceNameGetHint(_, StrEq("NAME")))
       .WillRepeatedly(Invoke(EchoHint));
   EXPECT_CALL(mock_alsa_wrapper_, StrError(kTestFailedErrno))
       .WillRepeatedly(Return(kDummyMessage));
 
   InSequence s;
   EXPECT_CALL(mock_alsa_wrapper_, PcmOpen(_, StrEq(first_try.c_str()), _, _))
       .WillOnce(Return(kTestFailedErrno));
@@ skipping 10 matching lines @@
 }
 
 TEST_F(AlsaPcmOutputStreamTest, AutoSelectDevice_HintFail) {
   // Should get |kDefaultDevice|, and force a 2-channel downmix on a failure to
   // enumerate devices.
   EXPECT_CALL(mock_alsa_wrapper_, DeviceNameHint(_, _, _))
       .WillRepeatedly(Return(kTestFailedErrno));
   EXPECT_CALL(mock_alsa_wrapper_,
               PcmOpen(_, StrEq(AlsaPcmOutputStream::kDefaultDevice), _, _))
       .WillOnce(DoAll(SetArgumentPointee<0>(kFakeHandle), Return(0)));
-  EXPECT_CALL(mock_alsa_wrapper_,
-              PcmSetParams(kFakeHandle, _, _, 2, _, _, _))
+  EXPECT_CALL(mock_alsa_wrapper_, PcmSetParams(kFakeHandle, _, _, 2, _, _, _))
       .WillOnce(Return(0));
   EXPECT_CALL(mock_alsa_wrapper_, StrError(kTestFailedErrno))
       .WillOnce(Return(kDummyMessage));
 
   AlsaPcmOutputStream* test_stream = CreateStream(CHANNEL_LAYOUT_5_0);
   EXPECT_TRUE(test_stream->AutoSelectDevice(5));
   EXPECT_TRUE(test_stream->channel_mixer_);
   test_stream->Close();
 }
 
 TEST_F(AlsaPcmOutputStreamTest, BufferPacket_StopStream) {
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   InitBuffer(test_stream);
   test_stream->stop_stream_ = true;
   bool source_exhausted;
   test_stream->BufferPacket(&source_exhausted);
   EXPECT_EQ(0, test_stream->buffer_->forward_bytes());
   EXPECT_TRUE(source_exhausted);
   test_stream->Close();
 }
 
 TEST_F(AlsaPcmOutputStreamTest, ScheduleNextWrite) {
   AlsaPcmOutputStream* test_stream = CreateStream(kTestChannelLayout);
   test_stream->TransitionTo(AlsaPcmOutputStream::kIsOpened);
   test_stream->TransitionTo(AlsaPcmOutputStream::kIsPlaying);
   InitBuffer(test_stream);
   DVLOG(1) << test_stream->state();
-  EXPECT_CALL(mock_alsa_wrapper_, PcmAvailUpdate(_))
-      .WillOnce(Return(10));
+  EXPECT_CALL(mock_alsa_wrapper_, PcmAvailUpdate(_)).WillOnce(Return(10));
   test_stream->ScheduleNextWrite(false);
   DVLOG(1) << test_stream->state();
   // TODO(sergeyu): Figure out how to check that the task has been added to the
   // message loop.
 
   // Cleanup the message queue. Currently ~MessageQueue() doesn't free pending
   // tasks unless running on valgrind. The code below is needed to keep
   // heapcheck happy.
 
   test_stream->stop_stream_ = true;
@@ skipping 15 matching lines @@
 
   // TODO(ajwong): Find a way to test whether or not another task has been
   // posted so we can verify that the Alsa code will indeed break the task
   // posting loop.
 
   test_stream->TransitionTo(AlsaPcmOutputStream::kIsClosed);
   test_stream->Close();
 }
 
 }  // namespace media