Merge 13212f83 from gingerbread-plus-aosp

Change-Id: I9a8ee0c7e7896aea85e7a7c18ee82927091cb670
diff --git a/services/audioflinger/AudioPolicyManagerBase.cpp b/services/audioflinger/AudioPolicyManagerBase.cpp
index e4086c4..2c81c34 100644
--- a/services/audioflinger/AudioPolicyManagerBase.cpp
+++ b/services/audioflinger/AudioPolicyManagerBase.cpp
@@ -1835,7 +1835,8 @@
         AudioSystem::DEVICE_OUT_WIRED_HEADPHONE |
         AudioSystem::DEVICE_OUT_ANLG_DOCK_HEADSET |
         AudioSystem::DEVICE_OUT_DGTL_DOCK_HEADSET)) &&
-        (getStrategy((AudioSystem::stream_type)stream) == STRATEGY_SONIFICATION) &&
+        ((getStrategy((AudioSystem::stream_type)stream) == STRATEGY_SONIFICATION) ||
+         (stream == AudioSystem::SYSTEM)) &&
         streamDesc.mCanBeMuted) {
         volume *= SONIFICATION_HEADSET_VOLUME_FACTOR;
         // when the phone is ringing we must consider that music could have been paused just before