Add "create_bundle" target in order to support bundle with gn.

tools/gn/bundle_data.h

Index: tools/gn/bundle_data.h
diff --git a/tools/gn/bundle_data.h b/tools/gn/bundle_data.h
new file mode 100644
index 0000000000000000000000000000000000000000..f84f794a3f20d5147f0bc9b57639dfec7269bf70
--- /dev/null
+++ b/tools/gn/bundle_data.h
@@ -0,0 +1,71 @@
+// 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.
+
+#ifndef TOOLS_GN_BUNDLE_DATA_H_
+#define TOOLS_GN_BUNDLE_DATA_H_
+
+#include <string>
+#include <vector>
+
+#include "tools/gn/bundle_file_rule.h"
+
+class OutputFile;
+class SourceFile;
+class Settings;
+class Target;
+
+bool IsSourceFileFromAssetCatalog(const SourceFile& source,
+                                  SourceFile* asset_catalog);
+
+class BundleData {
+ public:
+  BundleData();
+  ~BundleData();
+
+  void AddFileRuleFromTarget(const Target* target);
+
+  void GetSourceFiles(std::vector<SourceFile>* sources) const;
+
+  void GetOutputFiles(const Settings* settings,
+                      std::vector<OutputFile>* outputs) const;
+
+  void GetOutputsAsSourceFiles(
+      const Settings* settings,
+      std::vector<SourceFile>* outputs_as_source) const;
+
+  SourceFile GetCompiledAssetCatalogPath() const;
+
+  std::vector<SourceFile>& asset_catalog_sources() {
+    return asset_catalog_sources_;
+  }
+  const std::vector<SourceFile>& asset_catalog_sources() const {
+    return asset_catalog_sources_;
+  }
+
+  std::vector<BundleFileRule>& file_rules() { return file_rules_; }
+  const std::vector<BundleFileRule>& file_rules() const { return file_rules_; }
+
+  std::string& root_dir() { return root_dir_; }
+  const std::string& root_dir() const { return root_dir_; }
+
+  std::string& resources_dir() { return resources_dir_; }
+  const std::string& resources_dir() const { return resources_dir_; }
+
+  std::string& executable_dir() { return executable_dir_; }
+  const std::string& executable_dir() const { return executable_dir_; }
+
+  std::string& plugins_dir() { return plugins_dir_; }
+  const std::string& plugins_dir() const { return plugins_dir_; }
+
+ private:
+  std::vector<SourceFile> asset_catalog_sources_;
+  std::vector<BundleFileRule> file_rules_;
+
+  std::string root_dir_;

[brettw, 2016/03/02 21:12:42]

Can this have a comment that these values are subdirectories relative to
root_build_dir?

[sdefresne, 2016/03/07 20:47:35]

Done.

+  std::string resources_dir_;
+  std::string executable_dir_;
+  std::string plugins_dir_;
+};
+
+#endif  // TOOLS_GN_BUNDLE_DATA_H_