am cc019c0c: Merge "Get mute state from active call." into gingerbread

* commit 'cc019c0caa0dd984404dea4d6623ae9d7b8474f1':
  Get mute state from active call.

telephony/java/com/android/internal/telephony/CallManager.java

@@ -890,6 +890,8 @@ public final class CallManager {
     public boolean getMute() {
         if (hasActiveFgCall()) {
             return getActiveFgCall().getPhone().getMute();
+        } else if (hasActiveBgCall()) {
+            return getFirstActiveBgCall().getPhone().getMute();
         }
         return false;
     }

telephony/java/com/android/internal/telephony/sip/SipPhone.java

@@ -306,7 +306,9 @@ public class SipPhone extends SipPhoneBase {
     }
 
     public boolean getMute() {
-        return foregroundCall.getMute();
+        return (foregroundCall.getState().isAlive()
+                ? foregroundCall.getMute()
+                : backgroundCall.getMute());
     }
 
     public Call getForegroundCall() {