Forward the number of skipped frames by the OS in audio playout.

media/audio/audio_output_controller_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/basictypes.h"
 #include "base/bind.h"
 #include "base/environment.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 33 matching lines @@
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockAudioOutputControllerEventHandler);
 };
 
 class MockAudioOutputControllerSyncReader
     : public AudioOutputController::SyncReader {
  public:
   MockAudioOutputControllerSyncReader() {}
 
-  MOCK_METHOD1(UpdatePendingBytes, void(uint32 bytes));
+  MOCK_METHOD2(UpdatePendingBytes,
+               void(uint32_t bytes, uint32_t frames_skipped));
   MOCK_METHOD1(Read, void(AudioBus* dest));
   MOCK_METHOD0(Close, void());
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockAudioOutputControllerSyncReader);
 };
 
 class MockAudioOutputStream : public AudioOutputStream {
  public:
   MOCK_METHOD0(Open, bool());
@@ skipping 60 matching lines @@
     EXPECT_EQ(params_.IsValid(), controller_.get() != NULL);
   }
 
   void Play() {
     // Expect the event handler to receive one OnPlaying() call.
     EXPECT_CALL(mock_event_handler_, OnPlaying())
         .WillOnce(SignalEvent(&play_event_));
 
     // During playback, the mock pretends to provide audio data rendered and
     // sent from the render process.
-    EXPECT_CALL(mock_sync_reader_, UpdatePendingBytes(_))
-        .Times(AtLeast(1));
+    EXPECT_CALL(mock_sync_reader_, UpdatePendingBytes(_, _)).Times(AtLeast(1));
     EXPECT_CALL(mock_sync_reader_, Read(_))
         .WillRepeatedly(DoAll(PopulateBuffer(),
                               SignalEvent(&read_event_)));
     controller_->Play();
   }
 
   void Pause() {
     // Expect the event handler to receive one OnPaused() call.
     EXPECT_CALL(mock_event_handler_, OnPaused())
         .WillOnce(SignalEvent(&pause_event_));
@@ skipping 36 matching lines @@
           .Times(num_times_to_be_started);
     }
 
     controller_->StartDiverting(&mock_stream_);
   }
 
   void ReadDivertedAudioData() {
     scoped_ptr<AudioBus> dest = AudioBus::Create(params_);
     ASSERT_TRUE(mock_stream_.callback());
     const int frames_read =
-        mock_stream_.callback()->OnMoreData(dest.get(), 0);
+        mock_stream_.callback()->OnMoreData(dest.get(), 0, 0);
     EXPECT_LT(0, frames_read);
     EXPECT_EQ(kBufferNonZeroData, dest->channel(0)[0]);
   }
 
   void Revert(bool was_playing) {
     if (was_playing) {
       // Expect the handler to receive one OnPlaying() call as a result of the
       // stream switching back.
       EXPECT_CALL(mock_event_handler_, OnPlaying())
           .WillOnce(SignalEvent(&play_event_));
@@ skipping 199 matching lines @@
 
 TEST_F(AudioOutputControllerTest, DivertRevertClose) {
   Create(kSamplesPerPacket);
   WaitForCreate();
   DivertNeverPlaying();
   RevertWasNotPlaying();
   Close();
 }
 
 }  // namespace media