[Remoting Android] use HelpAndFeedback.launchFeedback to launch the feedback activity

remoting/android/java/src/org/chromium/chromoting/help/HelpAndFeedbackBasic.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chromoting.help;
 
 import android.app.Activity;
 
 /**
  * This class implements a basic UI for help-and-feedback.
  */
 public class HelpAndFeedbackBasic implements HelpAndFeedback {
     @Override
     public void launchHelp(Activity activity, HelpContext helpContext) {
         HelpActivity.launch(activity, urlFromHelpContext(helpContext));
     }
 
+    @Override
+    public void launchFeedback(Activity activity) {
+        FeedbackSender.sendFeedback(activity);
+    }
+
     private static String urlFromHelpContext(HelpContext helpContext) {
         switch (helpContext) {
             case HOST_LIST:
                 return "https://support.google.com/chrome/answer/6002441#hosts";
             case HOST_SETUP:
                 return "https://support.google.com/chrome/answer/1649523";
             case DESKTOP:
                 return "https://support.google.com/chrome/answer/6002441#gestures";
             default:
                 // Unreachable, but required by Java style.
                 assert false;
                 return "";
         }
     }
 }