Return number of frames output from resample method

Change-Id: Ic297e2ed59839f1788c83e099ef1a9e4af29591f
diff --git a/services/audioflinger/AudioResamplerDyn.h b/services/audioflinger/AudioResamplerDyn.h
index 238b163..3b1c381 100644
--- a/services/audioflinger/AudioResamplerDyn.h
+++ b/services/audioflinger/AudioResamplerDyn.h
@@ -52,7 +52,7 @@
 
     virtual void setVolume(float left, float right);
 
-    virtual void resample(int32_t* out, size_t outFrameCount,
+    virtual size_t resample(int32_t* out, size_t outFrameCount,
             AudioBufferProvider* provider);
 
 private:
@@ -111,10 +111,10 @@
             int inSampleRate, int outSampleRate, double tbwCheat);
 
     template<int CHANNELS, bool LOCKED, int STRIDE>
-    void resample(TO* out, size_t outFrameCount, AudioBufferProvider* provider);
+    size_t resample(TO* out, size_t outFrameCount, AudioBufferProvider* provider);
 
     // define a pointer to member function type for resample
-    typedef void (AudioResamplerDyn<TC, TI, TO>::*resample_ABP_t)(TO* out,
+    typedef size_t (AudioResamplerDyn<TC, TI, TO>::*resample_ABP_t)(TO* out,
             size_t outFrameCount, AudioBufferProvider* provider);
 
     // data - the contiguous storage and layout of these is important.