MD Settings: About page, implement help and feedback.

chrome/browser/resources/settings/about_page/about_page.html

 <link rel="import" href="chrome://resources/html/polymer.html">
+<link rel="import" href="chrome://md-settings/about_page/about_page_browser_proxy.html">
 <link rel="import" href="chrome://md-settings/settings_page/main_page_behavior.html">
 <link rel="import" href="chrome://md-settings/settings_page/settings_animated_pages.html">
 <link rel="import" href="chrome://md-settings/settings_page/settings_section.html">
 <link rel="import" href="chrome://md-settings/settings_shared_css.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/neon-animation/neon-animatable.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 
 <if expr="chromeos">
 <link rel="import" href="chrome://md-settings/about_page/detailed_build_info.html">
 <link rel="import" href="chrome://md-settings/settings_page/settings_subpage.html">
@@ skipping 25 matching lines @@
             <span>$i18n{aboutProductTitle}</span>
           </div>
           <div class="settings-box two-line">
             <!-- TODO(dpapad): Implement this. -->
             <div class="start">
               <div>Your device is up to date</div>
               <div class="secondary">Version Foo.bar.baz</div>
             </div>
             <paper-button class="secondary-action">Check for update</paper-button>
           </div>
-          <div class="settings-box two-line">
-            <!-- TODO(dpapad): Implement this. -->
-            <div class="start">
-              <div>Get help with Chrome</div>
-              <div class="secondary">Open the Help Center</div>
-            </div>
+          <div id="help" class="settings-box two-line" on-tap="onHelpTap_">
+            $i18n{aboutGetHelpUsingChrome}
           </div>
-          <div class="settings-box">
-            <!-- TODO(dpapad): Implement this. -->
-            Report an issue
+<if expr="_google_chrome">
+          <div id="reportIssue" class="settings-box" on-tap="onReportIssueTap_">
+            $i18n{aboutReportAnIssue}
           </div>
+</if>
 <if expr="chromeos">
           <div class="settings-box" on-tap="onDetailedBuildInfoTap_">
             <!-- TODO(dpapad): Localize string. -->
             Detailed build info
           </div>
 </if>
         </neon-animatable>
 <if expr="chromeos">
         <template is="dom-if" name="detailed-build-info">
           <settings-subpage page-title="Detailed build information">
             <settings-detailed-build-info></settings-detailed-build-info>
           </settings-subpage>
         </template>
 </if>
       </settings-animated-pages>
     </settings-section>
   </template>
   <script src="about_page.js"></script>
 </dom-module>