[MD settings] removing a11y_page.css to unify settings styles further

chrome/browser/resources/settings/a11y_page/a11y_page.html

 <link rel="import" href="chrome://resources/polymer/v1_0/polymer/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="chrome://md-settings/controls/settings_checkbox.html">
 
 <dom-module id="settings-a11y-page">
   <link rel="import" type="css" href="chrome://md-settings/settings_shared.css">
-  <link rel="import" type="css" href="a11y_page.css">
   <template>
-    <div class="settings-box">
+    <div class="settings-box row first">
       <span i18n-content="a11yExplanation"></span>
       <a i18n-values="href:a11yLearnMoreUrl" i18n-content="learnMore"
           target="_blank"></a>
     </div>
 
     <div class="settings-box">
       <settings-checkbox i18n-values="label:optionsInMenuLabel"
           pref="{{prefs.settings.a11y.enable_menu}}">
       </settings-checkbox>
       <settings-checkbox i18n-values="label:largeMouseCursorLabel"
@@ skipping 12 matching lines @@
       <settings-checkbox i18n-values="label:screenMagnifierLabel"
           pref="{{prefs.settings.a11y.screen_magnifier}}">
       </settings-checkbox>
       <settings-checkbox i18n-values="label:tapDraggingLabel"
           pref="{{prefs.settings.touchpad.enable_tap_dragging}}">
       </settings-checkbox>
       <settings-checkbox i18n-values="label:clickOnStopLabel"
           pref="{{prefs.settings.a11y.autoclick}}">
       </settings-checkbox>
 
-      <div class="autoclick-delay-label"
-          hidden$="[[!prefs.settings.a11y.autoclick]]">
-        <span i18n-content="delayBeforeClickLabel"></span>
-        <select id="autoclickDropdown"
-            value="{{prefs.settings.a11y.autoclick_delay_ms::change}}">
-          <option value="200" i18n-content="delayBeforeClickExtremelyShort">
-          </option>
-          <option value="400" i18n-content="delayBeforeClickVeryShort">
-          </option>
-          <option value="600" i18n-content="delayBeforeClickShort">
-          </option>
-          <option value="800" i18n-content="delayBeforeClickLong">
-          </option>
-          <option value="1000" i18n-content="delayBeforeClickVeryLong">
-          </option>
-        </select>
+      <div class="list-frame">
+        <div class="list-item">
+          <div i18n-content="delayBeforeClickLabel"></div>
+          <select
+              value="{{prefs.settings.a11y.autoclick_delay_ms::change}}">
+            <option value="200" i18n-content="delayBeforeClickExtremelyShort">
+            </option>
+            <option value="400" i18n-content="delayBeforeClickVeryShort">
+            </option>
+            <option value="600" i18n-content="delayBeforeClickShort">
+            </option>
+            <option value="800" i18n-content="delayBeforeClickLong">
+            </option>
+            <option value="1000" i18n-content="delayBeforeClickVeryLong">
+            </option>
+          </select>
+        </div>
       </div>
 
       <settings-checkbox pref="{{prefs.settings.a11y.virtual_keyboard}}"
           i18n-values="label:onScreenKeyboardLabel">
       </settings-checkbox>
     </div>
 
     <div class="settings-box">
       <div class="button-strip">
         <paper-button i18n-content="moreFeaturesLink"
             on-tap="onMoreFeaturesTap_"></paper-button>
       </div>
     </div>
   </template>
   <script src="a11y_page.js"></script>
 </dom-module>