Revert 217768 "Adding key press detection in the browser process."

> Adding key press detection in the browser process.
> It works like this on the browser side: 
> A new object KeyPressMonitor is created on BrowserMainLoop and passed to AudioInputRendererHost to pass to AudioInputController.
> AudioInputController::DoRecord calls KeyPressMonitor::AddKeyPressListener --> KeyPressMonitor listens to system key events through UserInputMonitor(only implemented on Linux) --> AudioInputController::OnKeyPressed is called and sets key_pressed_ --> When AudioInputController::OnData called, it writes key_pressed_ to shared memory along with the audio data buffer.
> On the renderer side a new param "key_pressed" is added through the code path of passing the flag to the webrtc voice engine.
> This CL includes all these changes except the implementation of UserInputMonitor for Windows and Mac. The impl of UserInputMonitor is mostly copied from remoting/host/local_input_monitor_linux.cc
> 
> 
> BUG=
> 
> Review URL: https://chromiumcodereview.appspot.com/21183002

TBR=jiayl@chromium.org

Review URL: https://codereview.chromium.org/22871007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@217774 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 1 insertions, 2 deletions

diff --git a/media/base/audio_capturer_source.h b/media/base/audio_capturer_source.h
index b584f8a..deae5e2 100644
--- a/media/base/audio_capturer_source.h
+++ b/media/base/audio_capturer_source.h
@@ -26,8 +26,7 @@ class AudioCapturerSource
     // Callback to deliver the captured data from the OS.
     virtual void Capture(AudioBus* audio_source,
                          int audio_delay_milliseconds,
-                         double volume,
-                         bool key_pressed) = 0;
+                         double volume) = 0;
 
     // Signals an error has occurred.
     virtual void OnCaptureError() = 0;