Add metrics to rappor.xml for Device Motion and Device Orientation.

tools/metrics/rappor/rappor.xml

 <!--
 Copyright 2015 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.
 -->
 
 <rappor-configuration>
 <!--
 This file is used to generate a comprehensive list of Chrome rappor metrics
 along with a detailed description for each histogram. See the design doc at
@@ skipping 217 matching lines @@
 </rappor-metric>
 
 <rappor-metric name="ContentSettings.PermissionRequested.Notifications.Url"
     type="ETLD_PLUS_ONE">
   <owner>miguelg@chromium.org</owner>
   <summary>
     The domain that issues a Notification permission prompt.
   </summary>
 </rappor-metric>
 
+<rappor-metric name="DeviceSensors.DeviceMotion" type="ETLD_PLUS_ONE">
+  <owner>timvolodine@chromium.org</owner>
+  <summary>
+    The domain and registry of the URL that is using Device Motion API.
+  </summary>
+</rappor-metric>
+
+<rappor-metric name="DeviceSensors.DeviceOrientation" type="ETLD_PLUS_ONE">
+  <owner>timvolodine@chromium.org</owner>
+  <summary>
+    The domain and registry of the URL that is using Device Orientation API.
+  </summary>
+</rappor-metric>
+
 <rappor-metric name="Extensions.PossibleAdInjection2" type="ETLD_PLUS_ONE">
   <owner>rdevlin.cronin@chromium.org</owner>
   <summary>
     The eTLD+1 of a URL that might be doing ad injection.
   </summary>
 </rappor-metric>
 
 <rappor-metric name="Launch.HomeScreen.Shortcut" type="ETLD_PLUS_ONE">
   <owner>dfalcantara@chromium.org</owner>
   <summary>
@@ skipping 152 matching lines @@
   <owner>nparker@chromium.org</owner>
   <summary>
     The domain+registry of a URL that triggered an SSL interstitial.     Domains
     for bad-clock warnings are not reported.
   </summary>
 </rappor-metric>
 
 </rappor-metrics>
 
 </rappor-configuration>