Remove ProcessingComponent's dependence on AudioProcessingImpl.

- Move needed accessors to AudioProcessing.
- Inject the crit directly as a dependency.
- Remove the now unneeded EchoCancellationImplWrapper.

BUG=2894
R=aluebs@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/9199004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5620 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/audio_processing/audio_processing_impl.h b/webrtc/modules/audio_processing/audio_processing_impl.h
index 09e2192..62ea275 100644
--- a/webrtc/modules/audio_processing/audio_processing_impl.h
+++ b/webrtc/modules/audio_processing/audio_processing_impl.h
@@ -21,7 +21,7 @@
 namespace webrtc {
 class AudioBuffer;
 class CriticalSectionWrapper;
-class EchoCancellationImplWrapper;
+class EchoCancellationImpl;
 class EchoControlMobileImpl;
 class FileWrapper;
 class GainControlImpl;
@@ -41,20 +41,9 @@
 
 class AudioProcessingImpl : public AudioProcessing {
  public:
-  enum {
-    kSampleRate8kHz = 8000,
-    kSampleRate16kHz = 16000,
-    kSampleRate32kHz = 32000
-  };
-
   explicit AudioProcessingImpl(const Config& config);
   virtual ~AudioProcessingImpl();
 
-  CriticalSectionWrapper* crit() const;
-
-  int split_sample_rate_hz() const;
-  bool was_stream_delay_set() const;
-
   // AudioProcessing methods.
   virtual int Initialize() OVERRIDE;
   virtual void SetExtraOptions(const Config& config) OVERRIDE;
@@ -64,6 +53,7 @@
   }
   virtual int set_sample_rate_hz(int rate) OVERRIDE;
   virtual int sample_rate_hz() const OVERRIDE;
+  virtual int split_sample_rate_hz() const OVERRIDE;
   virtual int set_num_channels(int input_channels,
                                int output_channels) OVERRIDE;
   virtual int num_input_channels() const OVERRIDE;
@@ -76,6 +66,7 @@
   virtual int AnalyzeReverseStream(AudioFrame* frame) OVERRIDE;
   virtual int set_stream_delay_ms(int delay) OVERRIDE;
   virtual int stream_delay_ms() const OVERRIDE;
+  virtual bool was_stream_delay_set() const OVERRIDE;
   virtual void set_delay_offset_ms(int offset) OVERRIDE;
   virtual int delay_offset_ms() const OVERRIDE;
   virtual void set_stream_key_pressed(bool key_pressed) OVERRIDE;
@@ -103,7 +94,7 @@
   bool synthesis_needed(bool is_data_processed) const;
   bool analysis_needed(bool is_data_processed) const;
 
-  EchoCancellationImplWrapper* echo_cancellation_;
+  EchoCancellationImpl* echo_cancellation_;
   EchoControlMobileImpl* echo_control_mobile_;
   GainControlImpl* gain_control_;
   HighPassFilterImpl* high_pass_filter_;