Add Disconnect menu-item to Android Chromoting client

remoting/android/java/src/org/chromium/chromoting/Desktop.java

Index: remoting/android/java/src/org/chromium/chromoting/Desktop.java
diff --git a/remoting/android/java/src/org/chromium/chromoting/Desktop.java b/remoting/android/java/src/org/chromium/chromoting/Desktop.java
index b1f18e54a15e8333f78db48d5d70419182244981..c3131a867e31f54953d01b9be2411584efb720fe 100644
--- a/remoting/android/java/src/org/chromium/chromoting/Desktop.java
+++ b/remoting/android/java/src/org/chromium/chromoting/Desktop.java
@@ -60,6 +60,9 @@ public class Desktop extends Activity {
             case R.id.actionbar_hide:
                 getActionBar().hide();
                 return true;
+            case R.id.actionbar_disconnect:
+                JniInterface.disconnectFromHost();
+                return true;
             default:
                 return super.onOptionsItemSelected(item);
         }