Show a visual indicator for the progress of auto-click.

chrome/browser/resources/options/browser_options.html

 <div id="settings" class="page" hidden>
   <header>
     <h1 i18n-content="settingsTitle"></h1>
   </header>
   <include src="automatic_settings_reset_banner.html">
 <if expr="chromeos">
   <link rel="import" href="chrome://resources/cr_elements/network/cr_network_icon.html">
   <link rel="import" href="chrome://resources/cr_elements/network/cr_onc_types.html">
   <include src="secondary_user_banner.html">
   <section id="network-section-cros">
@@ skipping 932 matching lines @@
       </div>
       <div class="checkbox">
         <!-- No whitespace between elements. -->
         <input type="checkbox" class="spacer-checkbox"><span
             id="accessibility-autoclick-label"
             i18n-content="accessibilityAutoclickDropdown">
         </span><select id="accessibility-autoclick-dropdown" class="control"
             data-type="number"
             aria-labelledby="accessibility-autoclick-label"
             pref="settings.a11y.autoclick_delay_ms">
-          <option value="200"
+          <option value="600"

[jdufault, 2016/05/31 19:06:15]

Are you also going to add the actual ms value in the UI string? So something
like "Extremely short (600ms)"?

[sammiequon, 2016/06/03 21:34:31]

Done. 

               i18n-content="autoclickDelayExtremelyShort"></option>
-          <option value="400"
+          <option value="800"
               i18n-content="autoclickDelayVeryShort"></option>
-          <option value="600" i18n-content="autoclickDelayShort">
+          <option value="1000" i18n-content="autoclickDelayShort">
           </option>
-          <option value="800" i18n-content="autoclickDelayLong">
+          <option value="2000" i18n-content="autoclickDelayLong">
           </option>
-          <option value="1000"
+          <option value="4000"
               i18n-content="autoclickDelayVeryLong"></option>
         </select>
         <span class="controlled-setting-indicator"
             pref="settings.a11y.autoclick_delay_ms"></span>
       </div>
     </div>
     <div class="option-name" id="accessibility_onscreen_keyboard">
       <div class="checkbox controlled-setting-with-label">
         <label>
           <input pref="settings.a11y.virtual_keyboard" type="checkbox"
@@ skipping 143 matching lines @@
       </button>
     </div>
   </section>
   </div>  <!-- advanced-settings-container -->
   </div>  <!-- advanced-settings -->
   <footer id="advanced-settings-footer">
     <a is="action-link" id="advanced-settings-expander"
         i18n-content="showAdvancedSettings"></a>
   </footer>
 </div>