Fixed transparent app windows on Windows.

chrome/browser/ui/views/apps/chrome_native_app_window_views_win.cc

Index: chrome/browser/ui/views/apps/chrome_native_app_window_views_win.cc
diff --git a/chrome/browser/ui/views/apps/chrome_native_app_window_views_win.cc b/chrome/browser/ui/views/apps/chrome_native_app_window_views_win.cc
index dd90d061d33b84a59797a7e182cdb8a6be80fbf6..46377c9ad31a5d4ce2b5ff412825124b2c0093c4 100644
--- a/chrome/browser/ui/views/apps/chrome_native_app_window_views_win.cc
+++ b/chrome/browser/ui/views/apps/chrome_native_app_window_views_win.cc
@@ -181,7 +181,8 @@ void ChromeNativeAppWindowViewsWin::InitializeDefaultWindow(
       base::Bind(&ChromeNativeAppWindowViewsWin::OnShortcutInfoLoaded,
                  weak_ptr_factory_.GetWeakPtr()));
 
-  EnsureCaptionStyleSet();
+  if (!create_params.transparent_background)
+    EnsureCaptionStyleSet();
   UpdateShelfMenu();
 }