[Media Router] Use common media-router-header for MR UI.

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

 <link rel="import" href="chrome://resources/polymer/v1_0/polymer/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icon/iron-icon.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icons/av-icons.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icons/communication-icons.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icons/hardware-icons.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icons/iron-icons.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-item/paper-item.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-menu/paper-menu.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-spinner/paper-spinner.html">
 <link rel="import" href="../issue_banner/issue_banner.html">
 <link rel="import" href="../media_router_header/media_router_header.html">
 <link rel="import" href="../route_details/route_details.html">
 <dom-module id="media-router-container">
   <link rel="import" type="css" href="media_router_container.css">
   <template>
     <media-router-header id="container-header"
         class$="[[currentView_]]" view="[[currentView_]]"
         heading-text="[[computeHeaderText_(currentView_, headerText)]]"
         arrow-drop-icon-disabled="[[computeIsLaunching_(currentLaunchingSinkId_)]]"
         tooltip="[[computeHeaderTooltip_(currentView_, headerTextTooltip)]]"
-        hidden$="[[computeHeaderHidden_(currentView_, issue)]]">
+        on-back-click="showSinkList_">
     </media-router-header>
     <template is="dom-if"
         if="[[computeIssueBannerShown_(currentView_, issue)]]">
       <issue-banner id="issue-banner" issue="[[issue]]"
-          class$="[[computeIssueBannerClass_(issue)]]">
+          class$="[[computeIssueBannerClass_(issue)]]"
+          on-issue-action-click="showSinkList_">
       </issue-banner>
     </template>
     <paper-menu id="cast-mode-list"
         hidden$="[[computeCastModeHidden_(currentView_)]]">
       <template is="dom-repeat" id="defaultCastModeList"
           items="[[computeDefaultCastModeList_(castModeList_)]]">
         <paper-item on-click="onCastModeClick_">
           <iron-icon class="cast-mode-icon"
               icon="[[computeCastModeIcon_(item)]]">
           </iron-icon>
           <div><span>[[item.host]]</span></div>
         </paper-item>
       </template>
       <div id="share-screen-text"
           hidden$="[[computeShareScreenSubheadingHidden_(castModeList_)]]">
         <span>[[shareYourScreenSubheadingText_]]</span>
       </div>
       <template is="dom-repeat" id="nonDefaultCastModeList"
           items="[[computeNonDefaultCastModeList_(castModeList_)]]">
         <paper-item on-click="onCastModeClick_">
           <iron-icon class="cast-mode-icon"
               icon="[[computeCastModeIcon_(item)]]">
           </iron-icon>
           <div><span>[[item.description]]</span></div>
         </paper-item>
       </template>
     </paper-menu>
     <route-details id="route-details" route="[[currentRoute_]]"
         sink="[[computeSinkForCurrentRoute_(currentRoute_)]]"

[imcheng, 2015/11/09 22:47:36]

remove

[apacible, 2015/11/09 22:57:35]

Done.

-        on-back-click="showSinkList_"
         on-close-route-click="onCloseRouteClick_"
         hidden$="[[computeRouteDetailsHidden_(currentView_, issue)]]">
     </route-details>
     <div id="sink-list-view"
         hidden$="[[computeSinkListViewHidden_(currentView_, issue)]]">
       <div id="device-missing"
            hidden$="[[!computeSinkListHidden_(sinksToShow_)]]">
         <paper-spinner id="searching-devices-spinner" active
             hidden$="[[computeSpinnerHidden_(justOpened_)]]">
         </paper-spinner>
@@ skipping 30 matching lines @@
                 </div>
               </div>
             </div>
           </paper-item>
         </template>
       </paper-menu>
     </div>
   </template>
   <script src="media_router_container.js"></script>
 </dom-module>