Add support for Mac/iOS application bundles to GN tool.

tools/gn/functions.h

 // Copyright (c) 2013 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_FUNCTIONS_H_
 #define TOOLS_GN_FUNCTIONS_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 78 matching lines @@
                 Err* err);
 
 extern const char kCopy[];
 extern const char kCopy_HelpShort[];
 extern const char kCopy_Help[];
 Value RunCopy(const FunctionCallNode* function,
               const std::vector<Value>& args,
               Scope* block_scope,
               Err* err);
 
+extern const char kCopyBundleData[];
+extern const char kCopyBundleData_HelpShort[];
+extern const char kCopyBundleData_Help[];
+Value RunCopyBundleData(const FunctionCallNode* function,
+                        const std::vector<Value>& args,
+                        Scope* block_scope,
+                        Err* err);
+
 extern const char kDeclareArgs[];
 extern const char kDeclareArgs_HelpShort[];
 extern const char kDeclareArgs_Help[];
 Value RunDeclareArgs(Scope* scope,
                      const FunctionCallNode* function,
                      const std::vector<Value>& args,
                      BlockNode* block,
                      Err* err);
 
 extern const char kDefined[];
@@ skipping 352 matching lines @@
   Scope* scope_;
   const FunctionCallNode* function_;
   const char* type_description_;
 
   // Set to true when the key is added to the scope so we don't try to
   // delete nonexistant keys which will cause assertions.
   bool key_added_;
 };
 
 #endif  // TOOLS_GN_FUNCTIONS_H_