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

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

Index: chrome/browser/resources/media_router/elements/issue_banner/issue_banner.html
diff --git a/chrome/browser/resources/media_router/elements/issue_banner/issue_banner.html b/chrome/browser/resources/media_router/elements/issue_banner/issue_banner.html
index c34daafe1c6ca739537b08957945ec0a892e2682..d5f02adbcdb680f91e0d793b7097d3712d35976c 100644
--- a/chrome/browser/resources/media_router/elements/issue_banner/issue_banner.html
+++ b/chrome/browser/resources/media_router/elements/issue_banner/issue_banner.html
@@ -1,15 +1,10 @@
 <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/paper-button/paper-button.html">
-<link rel="import" href="../media_router_header/media_router_header.html">
 <dom-module name="issue-banner">
   <link rel="import" type="css" href="../../media_router_common.css">
   <link rel="import" type="css" href="issue_banner.css">
   <template>
-    <media-router-header id="issue-header"
-        view="[[currentView_]]" heading-text="[[headerText_]]"
-        hidden$="[[computeIsBlockingIssueHidden_(issue)]]">
-    </media-router-header>
     <div class$="[[computeIssueClass_(issue)]]">
       <div>
         <div hidden$="[[computeIsBlockingIssueHidden_(issue)]]">