[Mac/GN] Treat create_bundle as a leaf for `gn desc runtime_deps`.

tools/gn/bundle_data.cc

Index: tools/gn/bundle_data.cc
diff --git a/tools/gn/bundle_data.cc b/tools/gn/bundle_data.cc
index f211c1ff0881b5fad4d3278ed8645f4f34cdb95b..e1823653ba497cc7ec8764712a1f369dd1287391 100644
--- a/tools/gn/bundle_data.cc
+++ b/tools/gn/bundle_data.cc
@@ -129,3 +129,8 @@ SourceFile BundleData::GetBundleRootDirOutput(const Settings* settings) const {
   }
   return SourceFile(root_dir().value());
 }
+
+SourceDir BundleData::GetBundleRootDirOutputAsDir(
+    const Settings* settings) const {
+  return SourceDir(GetBundleRootDirOutput(settings).value());

[sdefresne, 2016/05/17 18:45:36]

I think you need to add the trailing "/" when calling SourceDir() otherwise
you'll get a DCHECK in debug (but no error in release).

[Robert Sesek, 2016/05/17 18:49:34]

SourceFile DCHECKs if there is a slash, but SourceDir adds one if it doesn't
exist:
https://code.google.com/p/chromium/codesearch#chromium/src/tools/gn/source_di...

[sdefresne, 2016/05/18 08:08:41]

Ah good.

+}