Add a test runner for android_webview.

chrome/browser/component/components.gyp

 # Copyright (c) 2012 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.
 
 {
   'includes': [
     'web_contents_delegate_android/web_contents_delegate_android.gypi'
   ],
 
   'conditions': [
     ['OS=="android"', {
       'targets': [
         {
           'target_name': 'browser_component_jni_headers',
           'type': 'none',
           'sources': [
-            '../../android/java/src/org/chromium/chrome/browser/component/web_contents_delegate_android/WebContentsDelegateAndroid.java',
+            'web_contents_delegate_android/java/src/org/chromium/chrome/browser/component/web_contents_delegate_android/WebContentsDelegateAndroid.java',
           ],
           'variables': {
             'jni_gen_dir': 'chrome/browser_component',
           },
           'includes': [ '../../../build/jni_generator.gypi' ],
         },
       ],
     }],
   ],
 }