Fix GN build on mac with icu_use_data_file = false

content/shell/BUILD.gn

Index: content/shell/BUILD.gn
diff --git a/content/shell/BUILD.gn b/content/shell/BUILD.gn
index bb5eac67f30a361c146e554d42931974bc01c88e..495e3a1843894ea4c8931ff3704c57a353a5481d 100644
--- a/content/shell/BUILD.gn
+++ b/content/shell/BUILD.gn
@@ -16,6 +16,7 @@ if (is_android) {
 } else if (is_mac) {
   import("//build/config/mac/rules.gni")
   import("//build/mac/tweak_info_plist.gni")
+  import("//third_party/icu/config.gni")
   import("//v8/gni/v8.gni")
 } else if (is_win) {
   import("//build/win/syzygy/syzygy.gni")
@@ -572,7 +573,6 @@ if (is_mac) {
   bundle_data("content_shell_framework_resources") {
     sources = [
       "$root_out_dir/content_shell.pak",
-      "$root_out_dir/icudtl.dat",
       "resources/missingImage.png",
       "resources/textAreaResizeCorner.png",
     ]
@@ -581,9 +581,12 @@ if (is_mac) {
       ":pak",
     ]
 
-    deps = [
-      "//third_party/icu:icudata",
-    ]
+    if (icu_use_data_file) {
+      sources += [ "$root_out_dir/icudtl.dat" ]
+      deps = [
+        "//third_party/icu:icudata",
+      ]
+    }
 
     if (v8_use_external_startup_data) {
       sources += [