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

tools/gn/bundle_data.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "tools/gn/bundle_data.h"
 
 #include "base/logging.h"
 #include "tools/gn/filesystem_utils.h"
 #include "tools/gn/output_file.h"
 #include "tools/gn/settings.h"
@@ skipping 111 matching lines @@
   size_t first_component = bundle_root_relative.find('/');
   if (first_component != std::string::npos) {
     base::StringPiece outermost_bundle_dir =
         base::StringPiece(bundle_root_relative).substr(0, first_component);
     std::string return_value(build_dir.value());
     outermost_bundle_dir.AppendToString(&return_value);
     return SourceFile(SourceFile::SWAP_IN, &return_value);
   }
   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.

+}