Implement sideload wipeout for Extensions.

chrome/browser/resources/extensions/extensions.html

Index: chrome/browser/resources/extensions/extensions.html
===================================================================
--- chrome/browser/resources/extensions/extensions.html	(revision 162977)
+++ chrome/browser/resources/extensions/extensions.html	(working copy)
@@ -49,6 +49,17 @@
             i18n-content="extensionSettingsManagedMode"></span>
       </div>
     </div>
+    <div id="sideload-wipeout-banner"
+        class="page-banner sideload-wipeout-banner">
+      <div class="page-banner-gradient">
+        <span id="sideload-wipeout-text" class="page-banner-text">
+          <span i18n-content="extensionSettingsSideloadWipeout"></span>
+          <a i18n-values="href:sideloadWipeoutUrl"
+             i18n-content="sideloadWipoutLearnMore"
+             target="_blank"></a>
+         </span>
+      </div>
+    </div>
   </header>
   <div id="dev-controls" hidden>
     <button id="load-unpacked"
@@ -88,6 +99,7 @@
         <div>
           <span class="extension-title"></span>
           <span class="extension-version"></span>
+          <span class="extension-disable-reason"></span>
         </div>
         <p class="extension-description">
           <span></span>
@@ -151,7 +163,9 @@
             <span class="enable-text" i18n-content="extensionSettingsEnable">
             </span>
           </span>
-        </label></div>
+        </label>
+        <span class="location-text"></span>
+        </div>
       </div>
     </div>
   </div>