Revert of Reland 501823002: Used native deinterleaved and float point format for the input streams (patchset #4 id:80001 of https://codereview.chromium.org/510073002/)

Reason for revert:
It is speculated that this CL is blamed for crbug/409819, I temporarily revert it to be able to verify it on canary.

Original issue's description:
> Used native deinterleaved and float point format for the input streams.
>
> If we call GetProperty of kAudioUnitProperty_StreamFormat before setting the format, the device will report kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved as the native format of the device, which is the same as the output.
>
> This patch changes the format to use kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved to open the device, so that we will avoid format flipping back and forth. Hope this optimization will help increase the stability of the input audio on Mac.
>
> TBR=DaleCurtis@chromium.org
>
> BUG=404884
> TEST=media_unittests && https://webrtc.googlecode.com/svn-history/r5497/trunk/samples/js/demos/html/pc1.html, https://www.google.com/intl/en/chrome/demos/speech.html
>
> Committed: https://chromium.googlesource.com/chromium/src/+/2c732c000e18a6decd1da8da24e1f5f9e5f16833

TBR=dalecurtis@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=404884

Review URL: https://codereview.chromium.org/532303002

Cr-Commit-Position: refs/heads/master@{#293156}

1 files changed, 0 insertions, 7 deletions

diff --git a/media/base/audio_block_fifo.h b/media/base/audio_block_fifo.h
index 56a2fe0..fdb5cef 100644
--- a/media/base/audio_block_fifo.h
+++ b/media/base/audio_block_fifo.h
@@ -28,10 +28,6 @@ class MEDIA_EXPORT AudioBlockFifo {
   // Push() will crash if the allocated space is insufficient.
   void Push(const void* source, int frames, int bytes_per_sample);
 
-  // Pushes the audio data from |source| to the FIFO.
-  // Push() will crash if the allocated space is insufficient.
-  void Push(const AudioBus* source);
-
   // Consumes a block of audio from the FIFO.  Returns an AudioBus which
   // contains the consumed audio data to avoid copying.
   // Consume() will crash if the FIFO does not contain a block of data.
@@ -50,9 +46,6 @@ class MEDIA_EXPORT AudioBlockFifo {
   int GetUnfilledFrames() const;
 
  private:
-  // Helper method to update the indexes in Push methods.
-  void UpdatePosition(int push_frames);
-
   // The actual FIFO is a vector of audio buses.
   ScopedVector<AudioBus> audio_blocks_;