AudioSystem::getSamplingRate and getFrameCount now work for input

Also fix whitespace and comment in AudioIoDescriptor.

Bug: 25641253
Bug: 21019153
Change-Id: I6a1e2262f44f87ec3ebce6e5274f45ed0f47eb13
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 858ebbb..273cfe1 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -128,9 +128,9 @@
                                 sp<IMemory>& buffers,
                                 status_t *status /*non-NULL*/);
 
-    virtual     uint32_t    sampleRate(audio_io_handle_t output) const;
+    virtual     uint32_t    sampleRate(audio_io_handle_t ioHandle) const;
     virtual     audio_format_t format(audio_io_handle_t output) const;
-    virtual     size_t      frameCount(audio_io_handle_t output) const;
+    virtual     size_t      frameCount(audio_io_handle_t ioHandle) const;
     virtual     uint32_t    latency(audio_io_handle_t output) const;
 
     virtual     status_t    setMasterVolume(float value);