Convert most geolocation layout tests to use a JS mock implementation.

third_party/WebKit/LayoutTests/fast/dom/Geolocation/script-tests/timeout-clear-watch.js

 description("Tests that when a watch times out and is cleared from the error callback, there is no crash. This a regression test for https://bugs.webkit.org/show_bug.cgi?id=32111.");
 
-if (!window.testRunner || !window.internals)
-    debug('This test can not run without testRunner or internals');
-
-internals.setGeolocationClientMock(document);
-internals.setGeolocationPosition(document, 51.478, -0.166, 100.0);
+if (!window.testRunner || !window.mojo)
+    debug('This test can not run without testRunner or mojo');
 
 var error;
-var watchId = navigator.geolocation.watchPosition(function() {
-    testFailed('Success callback invoked unexpectedly');
-    finishJSTest();
-}, function(e) {
-    error = e;
-    shouldBe('error.code', 'error.TIMEOUT');
-    shouldBe('error.message', '"Timeout expired"');
-    navigator.geolocation.clearWatch(watchId);
-    window.setTimeout(finishJSTest, 0);
-}, {
-    timeout: 0
+
+geolocationServiceMock.then(mock => {
+    mock.setGeolocationPosition(51.478, -0.166, 100.0);
+
+    var watchId = navigator.geolocation.watchPosition(function() {
+        testFailed('Success callback invoked unexpectedly');
+        finishJSTest();
+    }, function(e) {
+        error = e;
+        shouldBe('error.code', 'error.TIMEOUT');
+        shouldBe('error.message', '"Timeout expired"');
+        navigator.geolocation.clearWatch(watchId);
+        window.setTimeout(finishJSTest, 0);
+    }, {
+        timeout: 0
+    });
 });
 
-
 window.jsTestIsAsync = true;