Add a Config parameter to AudioProcessing::Create().

Also add a parameter-less version; the (int) version is deprecated and
should be removed.

TBR=aluebs,bjornv
BUG=2844

Review URL: https://webrtc-codereview.appspot.com/7609004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5431 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/audio_processing/include/audio_processing.h

@@ -134,6 +134,9 @@ class AudioProcessing : public Module {
   // typically be one instance for the near-end stream, and additional instances
   // for each far-end stream which requires processing. On the server-side,
   // this would typically be one instance for every incoming stream.
+  static AudioProcessing* Create();
+  static AudioProcessing* Create(const Config& config);
+  // TODO(ajm): Deprecated; remove all calls to it.
   static AudioProcessing* Create(int id);
   virtual ~AudioProcessing() {}