Reverts third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/src/google/protobuf/compiler/java/java_extension.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 61 matching lines @@
   virtual int GenerateNonNestedInitializationCode(io::Printer* printer) = 0;
 
   // Returns an estimate of the number of bytes the printed code will compile to
   virtual int GenerateRegistrationCode(io::Printer* printer) = 0;
 
  protected:
   static void InitTemplateVars(const FieldDescriptor* descriptor,
                                const string& scope,
                                bool immutable,
                                ClassNameResolver* name_resolver,
-                               std::map<string, string>* vars_pointer);
+                               map<string, string>* vars_pointer);
 
  private:
   GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ExtensionGenerator);
 };
 
 class ImmutableExtensionGenerator : public ExtensionGenerator {
  public:
   explicit ImmutableExtensionGenerator(const FieldDescriptor* descriptor,
                                        Context* context);
   virtual ~ImmutableExtensionGenerator();
@@ skipping 11 matching lines @@
  private:
   GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ImmutableExtensionGenerator);
 };
 
 }  // namespace java
 }  // namespace compiler
 }  // namespace protobuf
 
 }  // namespace google
 #endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_EXTENSION_H__