Work around a bug where create_bundle() is ignoring data_deps() in iOS GN build.

build/config/ios/rules.gni

Index: build/config/ios/rules.gni
diff --git a/build/config/ios/rules.gni b/build/config/ios/rules.gni
index 8afbbcab5a813a63a9b7d4bd5a18b2eb343fb8e0..568cfadad1c60206441306a6c0edcf92e8731cae 100644
--- a/build/config/ios/rules.gni
+++ b/build/config/ios/rules.gni
@@ -114,6 +114,16 @@ template("app") {
       libs = []
     }
     libs += [ "UIKit.framework" ]
+
+    # TODO(crbug.com/599203) - iossim should probably be a data dependency
+    # of the create_bundle(target_name) target instead but at the moment
+    # create_bundle() is ignoring data_deps.
+    if (use_ios_simulator) {
+      if (!defined(data_deps)) {
+        data_deps = []
+      }
+      data_deps += [ "//testing/iossim(${host_toolchain})" ]
+    }
   }
 
   bundle_data(_bundle_data_executable) {
@@ -148,13 +158,6 @@ template("app") {
       ":$_bundle_data_info_plist",
     ]
 
-    if (use_ios_simulator) {
-      if (!defined(data_deps)) {
-        data_deps = []
-      }
-      data_deps += [ "//testing/iossim(${host_toolchain})" ]
-    }
-
     bundle_root_dir = "$root_out_dir/$_output_name.app"
     bundle_resources_dir = bundle_root_dir
     bundle_executable_dir = bundle_root_dir