<webview>: Move Geolocation permission to chrome layer.

chrome/test/data/extensions/platform_apps/web_view/geolocation/cancel_request/embedder.js

 // 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.
 
 var embedder = {};
 embedder.baseGuestURL = '';
 embedder.guestURL = '';
 embedder.iframeURL = '';
 
 /** @private */
@@ skipping 53 matching lines @@
     }
   };
   window.addEventListener('message', onPostMessageReceived);
 };
 
 /** @private */
 embedder.assertCorrectEvent_ = function(e) {
   chrome.test.assertEq('geolocation', e.permission);
   chrome.test.assertTrue(!!e.url);
   chrome.test.assertTrue(e.url.indexOf(embedder.baseGuestURL) == 0);
-
-  // Check that unexpected properties (from other permissionrequest) do not show
-  // up in the event object.
-  chrome.test.assertFalse('userGesture' in e);
 };
 
 var g_requestObject;
 
 // Tests begin.
 
 // Tests CancelGeolocationPermission code path.
 function testCancelGeolocationInIFrame() {
   var webview = embedder.setUpGuest_();
 
@@ skipping 12 matching lines @@
 }
 
 onload = function() {
   chrome.test.getConfig(function(config) {
     embedder.setUp_(config);
     chrome.test.runTests([
       testCancelGeolocationInIFrame,
     ]);
   });
 };