Fix all compiler errors found by the new compiler version.

remoting/webapp/browser_test/bump_scroll_browser_test.js

 // 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.
 
 /**
  * @fileoverview
  * @suppress {checkTypes}
  * Browser test for the scenario below:
  * 1. Enter full-screen mode
  * 2. Move the mouse to each edge; verify that the desktop bump-scrolls.
@@ skipping 101 matching lines @@
     this.scrollDirection.bind(this, 1.0, 0.5)  // Right edge
   ).then(
     this.scrollDirection.bind(this, 0.5, 1.0)  // Bottom edge
   ).then(
     this.scrollDirection.bind(this, 0.0, 0.5)  // Left edge
   ).then(
     this.scrollDirection.bind(this, 0.5, 0.0)  // Top edge
   ).then(
     function(value) {
       cleanup();
-      return browserTest.pass(value);
+      return browserTest.pass();
     },
     function(error) {
       cleanup();
       return browserTest.fail(error);
     }
   );
 };
 
 /**
  * @return {Promise}
@@ skipping 214 matching lines @@
  */
 browserTest.Bump_Scroll.prototype.verifyNoScroll =
     function(opt_desktopViewport) {
   var desktopViewport = opt_desktopViewport || getViewportForTesting();
   var bumpScroller = desktopViewport.getBumpScrollerForTesting();
   if (!bumpScroller) {
     Promise.resolve(true);
   }
   return this.verifyScroll(undefined, undefined, desktopViewport);
 };