Add Node.getRootNode(options)

third_party/WebKit/Source/core/dom/GetRootNodeOptions.idl

Index: third_party/WebKit/Source/core/dom/GetRootNodeOptions.idl
diff --git a/device/sensors/public/interfaces/motion.mojom b/third_party/WebKit/Source/core/dom/GetRootNodeOptions.idl
similarity index 58%
copy from device/sensors/public/interfaces/motion.mojom
copy to third_party/WebKit/Source/core/dom/GetRootNodeOptions.idl
index 7755344fdae3a462231db1eac44782591eacabdf..f0a99c73aa5603b895a9d20751af263b2e17b33e 100644
--- a/device/sensors/public/interfaces/motion.mojom
+++ b/third_party/WebKit/Source/core/dom/GetRootNodeOptions.idl
@@ -2,9 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-module device.mojom;
+// https://dom.spec.whatwg.org/#dictdef-getrootnodeoptions
 
-interface MotionSensor {
-  StartPolling() => (handle<shared_buffer> memory_handle);
-  StopPolling();
+dictionary GetRootNodeOptions {
+     boolean composed = false;
 };