[Media Router] Show user email in header if cloud sink is present.

chrome/browser/resources/media_router/media_router_ui_interface.js

Index: chrome/browser/resources/media_router/media_router_ui_interface.js
diff --git a/chrome/browser/resources/media_router/media_router_ui_interface.js b/chrome/browser/resources/media_router/media_router_ui_interface.js
index 35e8afbffc77111b409eafd6784c3cff5fc79889..e4495b9bdbc0574e21525aec09c2135c7ecbe2bd 100644
--- a/chrome/browser/resources/media_router/media_router_ui_interface.js
+++ b/chrome/browser/resources/media_router/media_router_ui_interface.js
@@ -51,6 +51,9 @@ cr.define('media_router.ui', function() {
    *          routes: !Array<!media_router.Route>,
    *          castModes: !Array<!media_router.CastMode>,
    *          wasFirstRunFlowAcknowledged: boolean,
+   *          userEmail: string,
+   *          userDomain: string,
+   *          showEmail: boolean,
    *          showFirstRunFlowCloudPref: boolean}} data
    * Parameters in data:
    *   firstRunFlowCloudPrefLearnMoreUrl - url to open when the cloud services
@@ -63,6 +66,9 @@ cr.define('media_router.ui', function() {
    *   castModes - list of available cast modes.
    *   wasFirstRunFlowAcknowledged - true if first run flow was previously
    *       acknowledged by user.
+   *   userEmail - The email of the user if the user is signed in.
+   *   userDomain - The domain of the user if the user is signed in.
+   *   showEmail - true if the user email should be shown.
    *   showFirstRunFlowCloudPref - true if the cloud pref option should be
    *       shown.
    */
@@ -75,6 +81,9 @@ cr.define('media_router.ui', function() {
     container.castModeList = data['castModes'];
     container.allSinks = data['sinks'];
     container.routeList = data['routes'];
+    container.userEmail = data['userEmail'];
+    container.userDomain = data['userDomain'];
+    container.showEmail = data['showEmail'];
     container.showFirstRunFlowCloudPref =
         data['showFirstRunFlowCloudPref'];
     // Some users acknowledged the first run flow before the cloud prefs