[Media Router] Add iconType field to MediaSink.

This adds the iconType field so the Media Router UI can show different icons for each Sink based on its device type. Android will not use iconType, so the Android MediaSinks will always have a "generic" iconType.

BUG=526251

Review URL: https://codereview.chromium.org/1313043004

Cr-Commit-Position: refs/heads/master@{#347257}

1 files changed, 23 insertions, 0 deletions

diff --git a/extensions/renderer/resources/media_router_bindings.js b/extensions/renderer/resources/media_router_bindings.js
index b0a468e..7063856 100644
--- a/extensions/renderer/resources/media_router_bindings.js
+++ b/extensions/renderer/resources/media_router_bindings.js
@@ -30,11 +30,34 @@ define('media_router_bindings', [
     return new mediaRouterMojom.MediaSink({
       'name': sink.friendlyName,
       'sink_id': sink.id,
+      'icon_type': sinkIconTypeToMojo(sink.iconType),
       'is_launching': sink.isLaunching_,
     });
   }
 
   /**
+   * Converts a media sink's icon type to a MediaSink.IconType Mojo object.
+   * @param {!MediaSink.IconType} type A media sink's icon type.
+   * @return {!mediaRouterMojom.MediaSink.IconType} A Mojo MediaSink.IconType
+   *     object.
+   */
+  function sinkIconTypeToMojo(type) {
+    switch (type) {
+      case 'cast':
+        return mediaRouterMojom.MediaSink.IconType.CAST;
+      case 'cast_audio':
+        return mediaRouterMojom.MediaSink.IconType.CAST_AUDIO;
+      case 'generic':
+        return mediaRouterMojom.MediaSink.IconType.GENERIC;
+      case 'hangout':
+        return mediaRouterMojom.MediaSink.IconType.HANGOUT;
+      default:
+        console.error('Unknown sink icon type : ' + type);
+        return mediaRouterMojom.MediaSink.IconType.GENERIC;
+    }
+  }
+
+  /**
    * Returns a Mojo MediaRoute object given a MediaRoute and a
    * media sink name.
    * @param {!MediaRoute} route