[Media Router] Wiring for searching route providers for new sinks.

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 a19cf3c874e961991161c5b85d59544de0073a00..9975ad3cfe56376e35e2fc153069eed4de8751a4 100644
--- a/chrome/browser/resources/media_router/media_router_ui_interface.js
+++ b/chrome/browser/resources/media_router/media_router_ui_interface.js
@@ -27,6 +27,15 @@ cr.define('media_router.ui', function() {
   }
 
   /**
+   * Handles the search response by forwarding |sinkId| to the container.
+   *
+   * @param {string} sinkId The ID of the sink found by search.
+   */
+  function receiveSearchResult(sinkId) {
+    container.onReceiveSearchResult(sinkId);
+  }
+
+  /**
    * Sets the cast mode list.
    *
    * @param {!Array<!media_router.CastMode>} castModeList
@@ -159,6 +168,7 @@ cr.define('media_router.ui', function() {
 
   return {
     onCreateRouteResponseReceived: onCreateRouteResponseReceived,
+    receiveSearchResult: receiveSearchResult,
     setCastModeList: setCastModeList,
     setElements: setElements,
     setFirstRunFlowData: setFirstRunFlowData,
@@ -357,6 +367,27 @@ cr.define('media_router.browserApi', function() {
                 [{sinkId: sinkId, selectedCastMode: selectedCastMode}]);
   }
 
+  /**
+   * Requests that the media router search all providers for a sink matching
+   * |searchCriteria| that can be used with the media source associated with the
+   * cast mode |selectedCastMode|. If such a sink is found, a route is also
+   * created between the sink and the media source.
+   *
+   * @param {string} sinkId Sink ID of the pseudo sink generating the request.
+   * @param {string} searchCriteria Search criteria for the route providers.
+   * @param {string} domain User's current domain.

[apacible, 2016/04/06 21:27:02]

Is this the user's current domain, or the pseudosink's current domain? Are these
guaranteed to be the same?

[apacible, 2016/04/06 21:27:02]

Are pseudosinks guaranteed to have a domain specified?

[btolsch, 2016/04/08 09:31:25]

The pseudo-sink will only have a domain if the MRP that created it cares about
the domain. So if an MRP doesn't set the domain then it will get passed back an
unset domain.

+   * @param {number} selectedCastMode The value of the cast mode to be used with
+   *   the sink.
+   */
+  function searchSinksAndCreateRoute(
+      sinkId, searchCriteria, domain, selectedCastMode) {
+    chrome.send('searchSinksAndCreateRoute',
+                [{sinkId: sinkId,
+                  searchCriteria: searchCriteria,
+                  domain: domain,
+                  selectedCastMode: selectedCastMode}]);
+  }
+
   return {
     acknowledgeFirstRunFlow: acknowledgeFirstRunFlow,
     actOnIssue: actOnIssue,
@@ -378,5 +409,6 @@ cr.define('media_router.browserApi', function() {
     reportTimeToInitialActionClose: reportTimeToInitialActionClose,
     requestInitialData: requestInitialData,
     requestRoute: requestRoute,
+    searchSinksAndCreateRoute: searchSinksAndCreateRoute,
   };
 });