Add Disconnect menu-item to Android Chromoting client

BUG=333129

Review URL: https://codereview.chromium.org/135353002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244514 0039d316-1c4b-4281-b951-d872f2087c98

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);
         }

remoting/resources/menu/desktop_actionbar.xml

@@ -9,4 +9,7 @@
             android:title="@string/actionbar_hide"
             android:icon="@android:drawable/ic_menu_close_clear_cancel"
             android:showAsAction="ifRoom|withText"/>
+    <item android:id="@+id/actionbar_disconnect"
+            android:title="@string/actionbar_disconnect"
+            android:showAsAction="withText"/>
 </menu>

remoting/resources/strings.xml

@@ -20,6 +20,7 @@
     <!--Action bar buttons-->
     <string name="actionbar_directoryrefresh">Refresh</string>
     <string name="actionbar_accountswitcher">Accounts</string>
+    <string name="actionbar_disconnect">Disconnect</string>
     <string name="actionbar_hide">Hide</string>
     <string name="actionbar_keyboard">Keyboard</string>