Make chrome app colored frames available on ChromeOS.

This feature has been available on Windows and Mac for some time, but
was never made available on ChromeOS.

BUG=371642

Review URL: https://codereview.chromium.org/407073002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@285416 0039d316-1c4b-4281-b951-d872f2087c98

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

@@ -527,7 +527,7 @@ views::NonClientFrameView* ChromeNativeAppWindowViews::CreateNonClientFrameView(
       return frame_view;
     }
 
-    if (IsFrameless())
+    if (IsFrameless() || has_frame_color_)
       return CreateNonStandardAppFrame();
 
     ash::CustomFrameViewAsh* custom_frame_view =