Fix issue 2242614: Wired headset not recognized: bogus "state" in ACTION_HEADSET_PLUG broadcast.
The headset state indicated by HeadsetObserver in the broadcast intent ACTION_HEADSET_PLUG was not 0 or 1 as specified in the java doc but contained a bit field indicating the type of headset connected.
Modified HeadsetObserver to broacast a state conforming to java doc.
Added an extra to intent ACTION_HEADSET_PLUG to indicate if headset has a microphone or not.
Removed handling of non standard headset indications from HeadsetObserver.
Removed platform specific devices from output devices defined in AudioSystem.
Modified AudioService to use new ACTION_HEADSET_PLUG intent extra instead of bitfield in state.
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index 398f211..0085f26 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -1678,6 +1678,7 @@
* <ul>
* <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
* <li><em>name</em> - Headset type, human readable string </li>
+ * <li><em>microphone</em> - 1 if headset has a microphone, 0 otherwise </li>
* </ul>
* </ul>
*/