ntp4: hook up 'no thanks' app promo link.

BUG=none
TEST=manual

Review URL: http://codereview.chromium.org/7572029

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@95504 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/ntp4/apps_page.js

@@ -231,11 +231,23 @@ cr.define('ntp4', function() {
       this.appsPromoHide_ =
           this.appsPromoExtras_.querySelector('.apps-promo-hide');
 
+      this.appsPromoHide_.addEventListener('click',
+                                           this.onHidePromoClicked_.bind(this));
+
       this.appendChild(this.appsPromoExtras_);
       this.appsPromoExtras_.hidden = false;
       // TODO(estade): A ping url needs to be set for the app icon.
     },
 
+    /**
+     * Handles when the "No, thanks" promo link is clicked.
+     * @private
+     */
+    onHidePromoClicked_: function(e) {
+      chrome.send('hideAppsPromo');
+      this.setAppsPromoData(null);
+    },
+
     /**
      * Sets the apps promo appearance. If |data| is null, there is no promo. If
      * |data| is non-null, it contains strings to be shown for the promo. The

chrome/browser/ui/webui/ntp/app_launcher_handler.cc

@@ -591,11 +591,20 @@ void AppLauncherHandler::HandleHideAppsPromo(const ListValue* args) {
   // If the user has intentionally hidden the promotion, we'll uninstall all the
   // default apps (we know the user hasn't installed any apps on their own at
   // this point, or the promotion wouldn't have been shown).
-  ignore_changes_ = true;
-  UninstallDefaultApps();
-  extension_service_->apps_promo()->HidePromo();
-  ignore_changes_ = false;
-  HandleGetApps(NULL);
+  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kNewTabPage4)) {
+    UninstallDefaultApps();
+    extension_service_->apps_promo()->HidePromo();
+  } else {
+    // TODO(estade): remove all this. NTP3 uninstalled all the default apps then
+    // refreshed the entire NTP, we don't have to jump through these hoops for
+    // NTP4 because each app uninstall is handled separately without reloading
+    // the entire page.
+    ignore_changes_ = true;
+    UninstallDefaultApps();
+    extension_service_->apps_promo()->HidePromo();
+    ignore_changes_ = false;
+    HandleGetApps(NULL);
+  }
 }
 
 void AppLauncherHandler::HandleCreateAppShortcut(const ListValue* args) {