[MD settings] touch up sub-page titles and icons

chrome/browser/resources/settings/settings_page/settings_subheader.html

Index: chrome/browser/resources/settings/settings_page/settings_subheader.html
diff --git a/chrome/browser/resources/settings/settings_page/settings_subheader.html b/chrome/browser/resources/settings/settings_page/settings_subheader.html
index 93c13b1a44d8422f6c715d7f80826c7f46fff7e5..87fd6495c4e7f4f8cb221eab43709d492e4f4385 100644
--- a/chrome/browser/resources/settings/settings_page/settings_subheader.html
+++ b/chrome/browser/resources/settings/settings_page/settings_subheader.html
@@ -1,13 +1,31 @@
 <link rel="import" href="chrome://resources/html/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/iron-icons.html">
+<link rel="import" href="chrome://md-settings/settings_shared_css.html">
 
 <dom-module id="settings-subheader">
   <link rel="import" type="css" href="settings_subheader.css">
   <template>
-    <paper-icon-button icon="arrow-back" on-tap="onTapBack_">
-    </paper-icon-button>
-    <h2>[[pageTitle]]</h2>
+    <style include="settings-shared">
+      :root {
+        --iron-icon-fill-color: var(--settings-side-nav-color);
+        --paper-icon-button: {
+          width: 36px;
+          height: 36px;
+          margin: 0 12px 0 -8px;
+        }
+      }
+
+      h2 {

[dpapad, 2016/03/25 18:31:07]

Can we merge the contents of settings_subheader.css into this inline CSS <style>
tag?

Asking because settings_subheader.css also has an h2 selector, so it is a bit
confusing to spread some  inline and some in a separate file.

[dschuyler, 2016/03/25 19:18:54]

That file can be removed, actually.

Done.

+        color: var(--settings-side-nav-color);
+        font-size: 107.6923%;
+      }
+    </style>
+    <div class="settings-box first">
+      <paper-icon-button icon="arrow-back" on-tap="onTapBack_">
+      </paper-icon-button>
+      <h2>[[pageTitle]]</h2>
+    </div>
   </template>
   <script src="settings_subheader.js"></script>
 </dom-module>