[Android] Incorporate findbugs into android builds.

chrome/android/javatests/src/org/chromium/chrome/browser/appmenu/AppMenuTest.java

 // Copyright 2014 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.chrome.browser.appmenu;
 
 import android.app.Activity;
 import android.content.pm.ActivityInfo;
 import android.test.suitebuilder.annotation.SmallTest;
 import android.view.KeyEvent;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.ListPopupWindow;
 import android.widget.ListView;
 
 import org.chromium.base.ThreadUtils;
+import org.chromium.base.annotations.SuppressFBWarnings;
 import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Feature;
 import org.chromium.chrome.shell.ChromeShellActivity;
 import org.chromium.chrome.shell.ChromeShellActivity.AppMenuHandlerFactory;
 import org.chromium.chrome.shell.ChromeShellTestBase;
 import org.chromium.chrome.shell.R;
 import org.chromium.content.browser.test.util.Criteria;
 import org.chromium.content.browser.test.util.CriteriaHelper;
 
 /**
  * Tests AppMenu popup
  */
 public class AppMenuTest extends ChromeShellTestBase {
     private AppMenu mAppMenu;
     private AppMenuHandlerForTest mAppMenuHandler;
 
     /**
      * AppMenuHandler that will be used to intercept item selections for testing.
      */
+    @SuppressFBWarnings("URF_UNREAD_FIELD")
     public static class AppMenuHandlerForTest extends AppMenuHandler {
         int mLastSelectedItemId = -1;
 
         /**
          * AppMenuHandler for intercepting options item selections.
          */
         public AppMenuHandlerForTest(Activity activity, AppMenuPropertiesDelegate delegate,
                 int menuResourceId) {
             super(activity, delegate, menuResourceId);
         }
@@ skipping 211 matching lines @@
         ListView listView = popup.getListView();
         return listView.getSelectedItemPosition();
     }
 
     private int getCount() {
         ListPopupWindow popup = mAppMenu.getPopup();
         if (popup == null || popup.getListView() == null) return 0;
         return popup.getListView().getCount();
     }
 }