Fix resources path for Mac non component build

headless/lib/headless_content_main_delegate.cc

Index: headless/lib/headless_content_main_delegate.cc
diff --git a/headless/lib/headless_content_main_delegate.cc b/headless/lib/headless_content_main_delegate.cc
index 739e95f483201083f8c1cdb01fdf509336627629..561f14be35cfa75812c88ee6cc6c9c45f652ab62 100644
--- a/headless/lib/headless_content_main_delegate.cc
+++ b/headless/lib/headless_content_main_delegate.cc
@@ -250,6 +250,9 @@ void HeadlessContentMainDelegate::InitializeResourceBundle() {
           kHeadlessResourcePak.length),
       ui::SCALE_FACTOR_NONE);
 #else
+#if defined(OS_MACOSX) && !defined(COMPONENT_BUILD)
+  dir_module = dir_module.Append(FILE_PATH_LITERAL("Resources/"));
+#endif
   // Try loading the headless library pak file first. If it doesn't exist (i.e.,
   // when we're running with the --headless switch), fall back to the browser's
   // resource pak.