MD Settings: Stop calling chrome.settingsPrivate.setDefaultZoomLevel on startup.

chrome/browser/resources/settings/appearance_page/appearance_page.html

Index: chrome/browser/resources/settings/appearance_page/appearance_page.html
diff --git a/chrome/browser/resources/settings/appearance_page/appearance_page.html b/chrome/browser/resources/settings/appearance_page/appearance_page.html
index 82d49c39e6c9b6dd8bce5abb8937fa5e26624635..1917e554d95ee7ac8252db8e7d817c658665941e 100644
--- a/chrome/browser/resources/settings/appearance_page/appearance_page.html
+++ b/chrome/browser/resources/settings/appearance_page/appearance_page.html
@@ -9,6 +9,7 @@
 <link rel="import" href="/controls/settings_dropdown_menu.html">
 <link rel="import" href="/controls/settings_input.html">
 <link rel="import" href="/controls/settings_radio_group.html">
+<link rel="import" href="/md_select_css.html">
 <link rel="import" href="/route.html">
 <link rel="import" href="/settings_page/settings_animated_pages.html">
 <link rel="import" href="/settings_page/settings_subpage.html">
@@ -17,7 +18,7 @@
 
 <dom-module id="settings-appearance-page">
   <template>
-    <style include="settings-shared">
+    <style include="settings-shared md-select">
       :host {
         --paper-input-container-label: {
           font-size: inherit;
@@ -146,9 +147,15 @@
         <div class="settings-box"
             hidden="[[!pageVisibility.pageZoom]]">
           <div class="start">$i18n{pageZoom}</div>
-          <settings-dropdown-menu id="pageZoom" pref="{{defaultZoomLevel_}}"
-              menu-options="[[pageZoomOptions_]]">
-          </settings-dropdown-menu>
+          <div class="md-select-wrapper">
+            <select id="zoomLevel" class="md-select"
+                  on-change="onZoomLevelChange_">
+              <template is="dom-repeat" items="[[pageZoomOptions_]]">
+                <option value="[[item.value]]">[[item.name]]</option>
+              </template>
+            </select>
+            <span class="md-select-underline"></span>
+          </div>
         </div>
       </neon-animatable>
       <template is="dom-if" route-path="/fonts">