WebUI internet-config-dialog: Apply shared MD Refresh button style.

Bug: 843770
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I5026217516d2c2b82c876d56086865c5ee9aa668
Reviewed-on: https://chromium-review.googlesource.com/1066946Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Demetrios Papadopoulos <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#560354}

chrome/browser/resources/chromeos/internet_config_dialog/internet_config_dialog.html

@@ -12,13 +12,14 @@
 <link rel="import" href="chrome://resources/cr_elements/chromeos/network/cr_network_icon.html">
 <link rel="import" href="chrome://resources/cr_elements/chromeos/network/cr_onc_types.html">
 <link rel="import" href="chrome://resources/cr_elements/cr_dialog/cr_dialog.html">
+<link rel="import" href="chrome://resources/cr_elements/paper_button_style_css.html">
 <link rel="import" href="chrome://resources/html/load_time_data.html">
 <link rel="import" href="chrome://resources/html/i18n_behavior.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/iron-flex-layout-classes.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="stylesheet" href="chrome://resources/css/text_defaults_md.css">
 
-<script src="chrome://internet-config-dialog/strings.js"></script>
+<script src="strings.js"></script>
 
 </head>
 
@@ -26,7 +27,7 @@
 
   <dom-module id="internet-config-dialog">
     <template>
-      <style include="network-shared iron-flex">
+      <style include="network-shared iron-flex paper-button-style">
         cr-dialog {
           --cr-dialog-native: {
             border-radius: 0;