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

chrome/browser/android/shortcut_helper.cc

Index: chrome/browser/android/shortcut_helper.cc
diff --git a/chrome/browser/android/shortcut_helper.cc b/chrome/browser/android/shortcut_helper.cc
index 8d8066c310a37bb9e37964221bf3fe2f4cfe8027..7ab56020584b889955e925293c0723aaf604679e 100644
--- a/chrome/browser/android/shortcut_helper.cc
+++ b/chrome/browser/android/shortcut_helper.cc
@@ -236,10 +236,11 @@ void ShortcutHelper::StoreWebappSplashImage(
 }
 
 // static
-SkBitmap ShortcutHelper::FinalizeLauncherIcon(const SkBitmap& bitmap,
-                                              const GURL& url,
-                                              bool* is_generated) {
-  DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
+SkBitmap ShortcutHelper::FinalizeLauncherIconInBackground(
+    const SkBitmap& bitmap,
+    const GURL& url,
+    bool* is_generated) {
+  DCHECK(content::BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread());
 
   JNIEnv* env = base::android::AttachCurrentThread();
   ScopedJavaLocalRef<jobject> result;