Update //third_party/protobuf to version 3.

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

Index: third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_enum_field.h
diff --git a/third_party/protobuf/src/google/protobuf/compiler/java/java_enum.h b/third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_enum_field.h
similarity index 56%
copy from third_party/protobuf/src/google/protobuf/compiler/java/java_enum.h
copy to third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_enum_field.h
index 9a9e5742ac3b8590e2e2c00de5123e681a53494e..b629eae81aefdf92333d2a456b0b42bb7b6198f8 100644
--- a/third_party/protobuf/src/google/protobuf/compiler/java/java_enum.h
+++ b/third_party/protobuf/src/google/protobuf/compiler/objectivec/objectivec_enum_field.h
@@ -1,6 +1,6 @@
 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
-// http://code.google.com/p/protobuf/
+// 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
@@ -28,59 +28,51 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Author: kenton@google.com (Kenton Varda)
-//  Based on original Protocol Buffers design by
-//  Sanjay Ghemawat, Jeff Dean, and others.
-
-#ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_H__
-#define GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_H__
+#ifndef GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_ENUM_FIELD_H__
+#define GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_ENUM_FIELD_H__
 
+#include <map>
 #include <string>
-#include <vector>
-#include <google/protobuf/descriptor.h>
+#include <google/protobuf/compiler/objectivec/objectivec_field.h>
 
 namespace google {
 namespace protobuf {
-  namespace io {
-    class Printer;             // printer.h
-  }
-}
-
-namespace protobuf {
 namespace compiler {
-namespace java {
+namespace objectivec {
+
+class EnumFieldGenerator : public SingleFieldGenerator {
+  friend FieldGenerator* FieldGenerator::Make(const FieldDescriptor* field);
 
-class EnumGenerator {
  public:
-  explicit EnumGenerator(const EnumDescriptor* descriptor);
-  ~EnumGenerator();
+  virtual void GenerateFieldDescriptionTypeSpecific(io::Printer* printer) const;
+  virtual void GenerateCFunctionDeclarations(io::Printer* printer) const;
+  virtual void GenerateCFunctionImplementations(io::Printer* printer) const;
+  virtual void DetermineForwardDeclarations(set<string>* fwd_decls) const;
 
-  void Generate(io::Printer* printer);
+ protected:
+  explicit EnumFieldGenerator(const FieldDescriptor* descriptor);
+  virtual ~EnumFieldGenerator();
 
  private:
-  const EnumDescriptor* descriptor_;
+  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(EnumFieldGenerator);
+};
 
-  // The proto language allows multiple enum constants to have the same numeric
-  // value.  Java, however, does not allow multiple enum constants to be
-  // considered equivalent.  We treat the first defined constant for any
-  // given numeric value as "canonical" and the rest as aliases of that
-  // canonical value.
-  vector<const EnumValueDescriptor*> canonical_values_;
+class RepeatedEnumFieldGenerator : public RepeatedFieldGenerator {
+  friend FieldGenerator* FieldGenerator::Make(const FieldDescriptor* field);
 
-  struct Alias {
-    const EnumValueDescriptor* value;
-    const EnumValueDescriptor* canonical_value;
-  };
-  vector<Alias> aliases_;
+ public:
+  virtual void GenerateFieldDescriptionTypeSpecific(io::Printer* printer) const;
 
-  bool CanUseEnumValues();
+ protected:
+  RepeatedEnumFieldGenerator(const FieldDescriptor* descriptor);
+  virtual ~RepeatedEnumFieldGenerator();
 
-  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(EnumGenerator);
+ private:
+  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(RepeatedEnumFieldGenerator);
 };
 
-}  // namespace java
+}  // namespace objectivec
 }  // namespace compiler
 }  // namespace protobuf
-
 }  // namespace google
-#endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_H__
+#endif  // GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_ENUM_FIELD_H__