Remove CommandLine dependency from the Linux's AudioCapturer.

remoting/host/audio_capturer_win.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 "remoting/host/audio_capturer_win.h"
 
 #include <windows.h>
 #include <avrt.h>
 #include <mmreg.h>
 #include <mmsystem.h>
@@ skipping 261 matching lines @@
 // static
 bool AudioCapturerWin::IsPacketOfSilence(
     const int16* samples, int number_of_samples) {
   for (int i = 0; i < number_of_samples; i++) {
     if (abs(samples[i]) > kSilenceThreshold)
       return false;
   }
   return true;
 }
 
-bool AudioCapturer::IsSupported() {
+bool AudioCapturer::IsSupported(ChromotingHostContext* context) {
   return true;
 }
 
-scoped_ptr<AudioCapturer> AudioCapturer::Create() {
+scoped_ptr<AudioCapturer> AudioCapturer::Create(
+    ChromotingHostContext* context) {
   return scoped_ptr<AudioCapturer>(new AudioCapturerWin());
 }
 
 }  // namespace remoting