Calls ShortcutHelper::FinalizeLauncherIcon() on worker thread instead of on IO thread

chrome/browser/android/webapps/add_to_homescreen_dialog_helper.cc

Index: chrome/browser/android/webapps/add_to_homescreen_dialog_helper.cc
diff --git a/chrome/browser/android/webapps/add_to_homescreen_dialog_helper.cc b/chrome/browser/android/webapps/add_to_homescreen_dialog_helper.cc
index a1e7c812cae7a626809b88d7c73452367374ae58..9c3a8f99e5c31483c0ed375f239e4d72479689af 100644
--- a/chrome/browser/android/webapps/add_to_homescreen_dialog_helper.cc
+++ b/chrome/browser/android/webapps/add_to_homescreen_dialog_helper.cc
@@ -85,13 +85,14 @@ void AddToHomescreenDialogHelper::Destroy(JNIEnv* env,
   delete this;
 }
 
-SkBitmap AddToHomescreenDialogHelper::FinalizeLauncherIcon(
+SkBitmap AddToHomescreenDialogHelper::FinalizeLauncherIconInBackground(
       const SkBitmap& bitmap,

[dominickn, 2016/08/08 03:13:42]

Nit: I think this indentation is wrong, you may as well fix it while you're here
if that's the case. :)

       const GURL& url,
       bool* is_generated) {
-  DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
+  DCHECK(content::BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread());
 
-  return ShortcutHelper::FinalizeLauncherIcon(bitmap, url, is_generated);
+  return ShortcutHelper::FinalizeLauncherIconInBackground(bitmap, url,
+                                                          is_generated);
 }
 
 void AddToHomescreenDialogHelper::AddShortcut(