Update comments

Change-Id: I5776313b9b49072cd666d28880f0d07cc73f827b
diff --git a/media/libmedia/AudioSystem.cpp b/media/libmedia/AudioSystem.cpp
index 8542404..a2cb619 100644
--- a/media/libmedia/AudioSystem.cpp
+++ b/media/libmedia/AudioSystem.cpp
@@ -35,8 +35,8 @@
 sp<IAudioFlinger> AudioSystem::gAudioFlinger;
 sp<AudioSystem::AudioFlingerClient> AudioSystem::gAudioFlingerClient;
 audio_error_callback AudioSystem::gAudioErrorCallback = NULL;
-// Cached values
 
+// Cached values for output handles
 DefaultKeyedVector<audio_io_handle_t, AudioSystem::OutputDescriptor *> AudioSystem::gOutputs(NULL);
 
 // Cached values for recording queries, all protected by gLock
diff --git a/media/libmedia/IAudioFlinger.cpp b/media/libmedia/IAudioFlinger.cpp
index 2cb0c5c..eb813bd 100644
--- a/media/libmedia/IAudioFlinger.cpp
+++ b/media/libmedia/IAudioFlinger.cpp
@@ -109,6 +109,7 @@
         data.writeInt32(frameCount);
         track_flags_t lFlags = flags != NULL ? *flags : (track_flags_t) TRACK_DEFAULT;
         data.writeInt32(lFlags);
+        // haveSharedBuffer
         if (sharedBuffer != 0) {
             data.writeInt32(true);
             data.writeStrongBinder(sharedBuffer->asBinder());
@@ -424,6 +425,7 @@
         data.writeInt32(channelMask);
         data.writeInt32(latency);
         data.writeInt32((int32_t) flags);
+        // hasOffloadInfo
         if (offloadInfo == NULL) {
             data.writeInt32(0);
         } else {
diff --git a/media/libmedia/IAudioPolicyService.cpp b/media/libmedia/IAudioPolicyService.cpp
index 1a027a6..9bb4a49 100644
--- a/media/libmedia/IAudioPolicyService.cpp
+++ b/media/libmedia/IAudioPolicyService.cpp
@@ -137,6 +137,7 @@
         data.writeInt32(static_cast <uint32_t>(format));
         data.writeInt32(channelMask);
         data.writeInt32(static_cast <uint32_t>(flags));
+        // hasOffloadInfo
         if (offloadInfo == NULL) {
             data.writeInt32(0);
         } else {