Get the WebGeolocationClient from WebFrameClient instead of WebViewClient.

LayoutTests/fast/dom/Geolocation/script-tests/disconnected-frame-permission-denied.js

 description("Tests that when a request is made on a Geolocation object, permission is denied and its Frame is disconnected before a callback is made, no callbacks are made.");
 
 if (!window.testRunner || !window.internals)
     debug('This test can not run without testRunner or internals');
 
-internals.setGeolocationClientMock(document);
-
-// Prime the Geolocation instance by denying permission. This makes sure that we execute the
-// same code path for both preemptive and non-preemptive permissions policies.
-internals.setGeolocationPermission(document, false);
-internals.setGeolocationPosition(document, 51.478, -0.166, 100);
-
 var error;
 function onIframeLoaded() {
+    var iframeDocument = iframe.contentWindow.document;
+    internals.setGeolocationClientMock(iframeDocument);
+
+    // Prime the Geolocation instance by denying permission. This makes sure that we execute the
+    // same code path for both preemptive and non-preemptive permissions policies.
+    internals.setGeolocationPermission(iframeDocument, false);
+    internals.setGeolocationPosition(iframeDocument, 51.478, -0.166, 100);
+
     iframeGeolocation = iframe.contentWindow.navigator.geolocation;
     iframeGeolocation.getCurrentPosition(function() {
         testFailed('Success callback invoked unexpectedly');
         finishJSTest();
     }, function(e) {
         error = e;
         shouldBe('error.code', 'error.PERMISSION_DENIED');
         shouldBe('error.message', '"User denied Geolocation"');
         debug('');
         iframe.src = 'data:text/html,This frame should be visible when the test completes';
@@ skipping 13 matching lines @@
         testPassed('No callbacks invoked');
         finishJSTest();
     }, 100);
 }
 
 var iframe = document.createElement('iframe');
 iframe.src = 'resources/disconnected-frame-inner.html';
 document.body.appendChild(iframe);
 
 window.jsTestIsAsync = true;