Add link to Settings page to add accessibility extensions.

chrome/browser/resources/options/browser_options.html

 <div id="settings" class="page" hidden>
   <header>
     <h1 i18n-content="settingsTitle"></h1>
   </header>
   <include src="reset_profile_settings_banner.html">
   <include src="automatic_settings_reset_banner.html">
 <if expr="chromeos">
   <include src="secondary_user_banner.html">
   <section>
     <div id="network-section-header" class="section-header">
@@ skipping 688 matching lines @@
             <span class="controlled-setting-indicator"
                   pref="local_discovery.notifications_enabled"></span>
           </span>
         </label>
       </div>
     </section>
 </if>
 
 <if expr="chromeos">
   <include src="startup_section.html">
-  <section>
-    <h3 i18n-content="accessibilityTitle"></h3>
+</if>
+
+<section>
+  <h3 i18n-content="accessibilityTitle"></h3>
+
+  <div>
+    <a target="_blank"
+        href="https://chrome.google.com/webstore/category/collection/accessibility"
+        id="accessibility-features"
+        i18n-content="accessibilityFeaturesLink"></a>

[Dan Beam, 2014/09/23 22:48:37]

nit:

  <a href="https://chrome.google.com/webstore/category/collection/accessibility"
     id="accessibility-features" target="_blank"
     i18n-content="accessibilityFeaturesLink"></a>

shaves a line

[dmazzoni, 2014/09/24 22:11:47]

Done.

+  </div>
+
+  <if expr="chromeos">

[Dan Beam, 2014/09/23 22:48:37]

0-indent <if>'s (like #ifdef's in C)

[dmazzoni, 2014/09/24 22:11:47]

Done.

     <div class="option-control-table">
       <p id="accessibility-explanation" class="settings-row">
         <span i18n-content="accessibilityExplanation"></span>
         <a id="accessibility-learn-more" target="_blank"
            i18n-content="learnMore"></a>
       </p>
       <div class="option-name">
         <div class="checkbox controlled-setting-with-label">
           <label>
             <input
@@ skipping 133 matching lines @@
             <input pref="settings.a11y.virtual_keyboard" type="checkbox"
                 metric="Options_AccessibilityOnScreenKeyboard">
             <span>
               <span i18n-content="accessibilityVirtualKeyboard"></span>
               <span class="controlled-setting-indicator"
                   pref="settings.a11y.virtual_keyboard"></span>
             </span>
           </label>
         </div>
       </div>
-  </section>
+    </div>
+  </if>

[Dan Beam, 2014/09/23 22:48:37]

no indent

[dmazzoni, 2014/09/24 22:11:47]

Done.

+</section>
+
 <if expr="chromeos">
   <section id="factory-reset-section" hidden>
     <h3 i18n-content="factoryResetTitle"></h3>
     <div>
       <span class="settings-row" i18n-content="factoryResetDescription">
       </span>
       <button id="factory-reset-restart"
           i18n-content="factoryResetRestart">
       </button>
     </div>
@@ skipping 40 matching lines @@
   </div>  <!-- advanced-settings -->
   <footer>
     <button id="advanced-settings-expander" class="link-button"
         i18n-content="showAdvancedSettings">
     </button>
     <button id="version-button" class="link-button" hidden
         i18n-content="browserVersion">
     </button>
   </footer>
 </div>