[DeviceService] Replace vibration_browsertest.cc with layout tests.

third_party/WebKit/LayoutTests/vibration/resources/vibration-helpers.js

+'use strict';
+
+function vibration_mocks(mojo) {
+  return define(
+      'VibrationManager mocks',
+      [
+        'mojo/public/js/bindings',
+        'device/vibration/vibration_manager.mojom',
+      ],
+      (bindings, vibrationManager) => {
+        class MockVibrationManager {
+          constructor() {
+            this.bindingSet =
+                new bindings.BindingSet(vibrationManager.VibrationManager);
+
+            this.vibrate_milliseconds_ = -1;
+            this.cancelled_ = false;
+          }
+
+          vibrate(milliseconds) {
+            this.vibrate_milliseconds_ = milliseconds;
+            window.postMessage('Vibrate', '*');
+            return Promise.resolve();
+          }
+
+          cancel() {
+            this.cancelled_ = true;
+            window.postMessage('Cancel', '*');
+          }
+
+          getDuration() {
+            return this.vibrate_milliseconds_;
+          }
+
+          isCancelled() {
+            return this.cancelled_;
+          }
+
+          reset() {
+            this.vibrate_milliseconds_ = -1;
+            this.cancelled_ = false;
+          }
+        }
+
+        let mockVibrationManager = new MockVibrationManager;
+        mojo.frameInterfaces.addInterfaceOverrideForTesting(
+            vibrationManager.VibrationManager.name, handle => {
+              mockVibrationManager.bindingSet.addBinding(
+                  mockVibrationManager, handle);
+            });
+
+        return Promise.resolve({
+          // Interface instance bound to main frame.
+          mockVibrationManager: mockVibrationManager,
+          // Constructor for mock VibrationManager class.
+          MockVibrationManager: MockVibrationManager,
+          // Loaded mojom interface.
+          VibrationManager: vibrationManager.VibrationManager,
+        });
+      });
+}
+
+function vibration_test(func, name, properties) {
+  mojo_test(
+      mojo => vibration_mocks(mojo).then(vibration => {
+        let result = Promise.resolve(func(vibration));
+        let cleanUp = () => vibration.mockVibrationManager.reset();
+        result.then(cleanUp, cleanUp);
+        return result;
+      }),
+      name, properties);
+}