Fix typos

Fix typos in comments
Add formal parameter name to declaration where it was missing
Fix out of order comments

Change-Id: I1de81ae82af5ca507864e4c7b959111bac898b98
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 9881764..d0b825c 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -5208,7 +5208,7 @@
     }
 
     if (initFastCapture) {
-        // create a Pipe for FastMixer to write to, and for us and fast tracks to read from
+        // create a Pipe for FastCapture to write to, and for us and fast tracks to read from
         NBAIO_Format format = mInputSource->format();
         size_t pipeFramesP2 = roundup(mSampleRate / 25);    // double-buffering of 20 ms each
         size_t pipeSize = pipeFramesP2 * Format_frameSize(format);