Vibration API : migrate to device/vibration using mojo.

device/vibration/vibration_manager.mojom

Index: device/vibration/vibration_manager.mojom
diff --git a/device/vibration/vibration_manager.mojom b/device/vibration/vibration_manager.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..757fd8b0cda008755aacac500f375e2506a47762
--- /dev/null
+++ b/device/vibration/vibration_manager.mojom
@@ -0,0 +1,12 @@
+// Copyright 2014 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.
+
+module device {
+
+interface VibrationManager {
+  Vibrate(int64 millis);
+  Cancel();
+};
+
+}