AudioFlinger: fix timed audio

(cherry picked from commit e20ac92c564a2f4e8123885807abdf0a78de0dd7)

> AudioFlinger: fix timed audio
>
> Addresses Bug 6900517.
>
> Finish up support for timed audio in the new FastMixer world.  Pay special
> attention to remaining lock-less and voluntary yield free on the FastMixer
> thread.  This fixes audio playback for Q on JB.
>
> Change-Id: Iaf815e58a1b1d0a0190051794bec8dc5c9231785
> Signed-off-by: John Grossman <johngro@google.com>

Change-Id: I9bd687acc345a05867af48e71116690fdb0ce1b5
Signed-off-by: John Grossman <johngro@google.com>
diff --git a/services/audioflinger/MonoPipeReader.h b/services/audioflinger/MonoPipeReader.h
index 9bb0a94..0e1c992 100644
--- a/services/audioflinger/MonoPipeReader.h
+++ b/services/audioflinger/MonoPipeReader.h
@@ -47,7 +47,7 @@
 
     virtual ssize_t availableToRead();
 
-    virtual ssize_t read(void *buffer, size_t count);
+    virtual ssize_t read(void *buffer, size_t count, int64_t readPTS);
 
     // NBAIO_Source end