[Media Router WebUI] Move listeners to afterNextRender().

chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js

Index: chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js
diff --git a/chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js b/chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js
index f61b2ed6b874889275af2f10c317cfd4ef8de604..e4054a5520d50a5cc08f579c2ebcefcc1b7a70ac 100644
--- a/chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js
+++ b/chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js
@@ -345,14 +345,6 @@ Polymer({
     I18nBehavior,
   ],
 
-  listeners: {
-    'focus': 'onFocus_',
-    'header-height-changed': 'updateElementPositioning_',
-    'header-or-arrow-click': 'toggleCastModeHidden_',
-    'mouseleave': 'onMouseLeave_',
-    'mouseenter': 'onMouseEnter_',
-  },
-
   observers: [
     'maybeUpdateStartSinkDisplayStartTime_(currentView_, sinksToShow_)',
   ],
@@ -370,6 +362,11 @@ Polymer({
 
       document.addEventListener('keydown', this.onKeydown_.bind(this), true);
       this.setSearchFocusHandlers_();
+      this.listen(this, 'focus', 'onFocus_');
+      this.listen(this, 'header-height-changed', 'updateElementPositioning_');
+      this.listen(this, 'header-or-arrow-click', 'toggleCastModeHidden_');
+      this.listen(this, 'mouseleave', 'onMouseLeave_');
+      this.listen(this, 'mouseenter', 'onMouseEnter_');
 
       // Turn off the spinner after 3 seconds, then report the current number of
       // sinks.