Reverts third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_file.h

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
@@ skipping 44 matching lines @@
 
 class FileGenerator {
  public:
   FileGenerator(const FileDescriptor* file, const Options& options);
   ~FileGenerator();
 
   void GenerateSource(io::Printer* printer);
   void GenerateHeader(io::Printer* printer);
 
   const string& RootClassName() const { return root_class_name_; }
+  const string Path() const;
+
+  bool IsPublicDependency() const { return is_public_dep_; }
+
+ protected:
+  void SetIsPublicDependency(bool is_public_dep) {
+    is_public_dep_ = is_public_dep;
+  }
 
  private:
   const FileDescriptor* file_;
   string root_class_name_;
 
+  // Access this field through the DependencyGenerators accessor call below.
+  // Do not reference it directly.
+  vector<FileGenerator*> dependency_generators_;
+
   vector<EnumGenerator*> enum_generators_;
   vector<MessageGenerator*> message_generators_;
   vector<ExtensionGenerator*> extension_generators_;
+  bool is_public_dep_;
 
   const Options options_;
 
-  void PrintFileRuntimePreamble(
-      io::Printer* printer, const string& header_to_import) const;
+  const vector<FileGenerator*>& DependencyGenerators();
 
   GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(FileGenerator);
 };
 
 }  // namespace objectivec
 }  // namespace compiler
 }  // namespace protobuf
 }  // namespace google
 
 #endif  // GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_FILE_H__