Implement feedback in Chromoting Help & Feedback screen

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

 // Copyright 2013 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;
 
 import android.app.Activity;
-import android.content.Intent;
 import android.content.res.Configuration;
-import android.net.Uri;
 import android.os.Bundle;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.ImageButton;
 
 import org.chromium.chromoting.jni.JniInterface;
 
@@ skipping 86 matching lines @@
                     for (int key : keys) {
                         JniInterface.keyboardAction(key, true);
                     }
                     for (int key : keys) {
                         JniInterface.keyboardAction(key, false);
                     }
                 }
                 return true;
 
             case R.id.actionbar_help:
-                {
-                    Intent intent = new Intent(this, HelpActivity.class);
-                    intent.setData(Uri.parse(HELP_URL));
-                    startActivity(intent);
-                }
+                HelpActivity.launch(this, HELP_URL);
                 return true;
 
             default:
                 return super.onOptionsItemSelected(item);
         }
     }
 
     /**
      * Called once when a keyboard key is pressed, then again when that same key is released. This
      * is not guaranteed to be notified of all soft keyboard events: certian keyboards might not
@@ skipping 25 matching lines @@
                 break;
 
             default:
                 // We try to send all other key codes to the host directly.
                 JniInterface.keyboardAction(event.getKeyCode(), depressed);
         }
 
         return super.dispatchKeyEvent(event);
     }
 }