Fixes handling of promo browser commands sent by OneGoogle callout

CommandId and ClickInfo are sent by OneGoogle inside a 'data' property
in MessageEvent.data. This CL fixes handling of OneGoogle promo browser
commands by looking for CommandId and ClickInfo in
MessageEvent.data.data

Bug: 1106421
Change-Id: I87f2d58ea47aa71e6662bb331170d0074cefb212
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2376979
Commit-Queue: Moe Ahmadi <mahmadi@chromium.org>
Reviewed-by: Esmael Elmoslimany <aee@chromium.org>
Auto-Submit: Moe Ahmadi <mahmadi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#802384}

chrome/browser/resources/new_tab_page/app.js

@@ -728,7 +728,7 @@ class AppElement extends PolymerElement {
       $$(this, '#oneGoogleBar').style.zIndex = '0';
     } else if (data.messageType === 'execute-browser-command') {
       this.executePromoBrowserCommand_(
-          /** @type CommandData */ (data), event.source, event.origin);
+          /** @type {!CommandData} */ (data.data), event.source, event.origin);
     }
   }
 
@@ -756,7 +756,7 @@ class AppElement extends PolymerElement {
       this.pageHandler_.onPromoLinkClicked();
     } else if (data.messageType === 'execute-browser-command') {
       this.executePromoBrowserCommand_(
-          /** @type CommandData */ (data), event.source, event.origin);
+          /** @type {!CommandData} */ (data), event.source, event.origin);
     }
   }
 

chrome/test/data/webui/new_tab_page/app_test.js

@@ -411,8 +411,10 @@ suite('NewTabPageAppTest', () => {
       data: {
         frameType: 'one-google-bar',
         messageType: 'execute-browser-command',
-        commandId,
-        clickInfo,
+        data: {
+          commandId,
+          clickInfo,
+        },
       },
       source: window,
       origin: window.origin,