Allow feedback form to be shown in an App Launcher feedback mode.

chrome/browser/resources/feedback.js

Index: chrome/browser/resources/feedback.js
diff --git a/chrome/browser/resources/feedback.js b/chrome/browser/resources/feedback.js
index b17cc1981254dccc24bfdbad80e8a0928425a572..a0e522f965b8ee4c8ec411257c107f407b7bb8aa 100644
--- a/chrome/browser/resources/feedback.js
+++ b/chrome/browser/resources/feedback.js
@@ -95,7 +95,7 @@ function addScreenshot(divId, screenshot) {
 }
 
 /**
- * Disables screenshots completely.
+ * Enables screenshots.
  */
 function enableScreenshots() {
   if (forceDisableScreenshots)
@@ -398,7 +398,9 @@ function setupDialogDefaults(defaults) {
   $('user-email-text').value = defaults.userEmail;
   $('user-email-checkbox').checked = defaults.emailCheckboxDefault;
 
-  // Are screenshots disabled?
+  document.documentElement.classList.toggle('launcher-layout',
+                                            defaults.launcherFeedback);
+
   if (!defaults.disableScreenshots)
     enableScreenshots();