Update //third_party/protobuf to version 3.

third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_map_field.h

Index: third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_map_field.h
diff --git a/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_message_field.h b/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_map_field.h
similarity index 57%
copy from third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_message_field.h
copy to third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_map_field.h
index a5ed68a5c4265d556281318cdcab6050d813aae3..5e205623b808c624768d2ebd2368040f4cdd6b81 100644
--- a/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_message_field.h
+++ b/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_map_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
@@ -28,58 +28,30 @@
 // (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_CPP_MESSAGE_FIELD_H__
-#define GOOGLE_PROTOBUF_COMPILER_CPP_MESSAGE_FIELD_H__
+#ifndef GOOGLE_PROTOBUF_COMPILER_CPP_MAP_FIELD_H__
+#define GOOGLE_PROTOBUF_COMPILER_CPP_MAP_FIELD_H__
 
 #include <map>
 #include <string>
-#include <google/protobuf/compiler/cpp/cpp_field.h>
+
+#include <google/protobuf/compiler/cpp/cpp_message_field.h>
 
 namespace google {
 namespace protobuf {
 namespace compiler {
 namespace cpp {
 
-class MessageFieldGenerator : public FieldGenerator {
- public:
-  explicit MessageFieldGenerator(const FieldDescriptor* descriptor,
-                                 const Options& options);
-  ~MessageFieldGenerator();
-
-  // implements FieldGenerator ---------------------------------------
-  void GeneratePrivateMembers(io::Printer* printer) const;
-  void GenerateAccessorDeclarations(io::Printer* printer) const;
-  void GenerateInlineAccessorDefinitions(io::Printer* printer) const;
-  void GenerateClearingCode(io::Printer* printer) const;
-  void GenerateMergingCode(io::Printer* printer) const;
-  void GenerateSwappingCode(io::Printer* printer) const;
-  void GenerateConstructorCode(io::Printer* printer) const;
-  void GenerateMergeFromCodedStream(io::Printer* printer) const;
-  void GenerateSerializeWithCachedSizes(io::Printer* printer) const;
-  void GenerateSerializeWithCachedSizesToArray(io::Printer* printer) const;
-  void GenerateByteSize(io::Printer* printer) const;
-
- private:
-  const FieldDescriptor* descriptor_;
-  map<string, string> variables_;
-
-  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(MessageFieldGenerator);
-};
-
-class RepeatedMessageFieldGenerator : public FieldGenerator {
+class MapFieldGenerator : public FieldGenerator {
  public:
-  explicit RepeatedMessageFieldGenerator(const FieldDescriptor* descriptor,
-                                         const Options& options);
-  ~RepeatedMessageFieldGenerator();
+  explicit MapFieldGenerator(const FieldDescriptor* descriptor,
+                             const Options& options);
+  ~MapFieldGenerator();
 
   // implements FieldGenerator ---------------------------------------
   void GeneratePrivateMembers(io::Printer* printer) const;
   void GenerateAccessorDeclarations(io::Printer* printer) const;
-  void GenerateInlineAccessorDefinitions(io::Printer* printer) const;
+  void GenerateInlineAccessorDefinitions(io::Printer* printer,
+                                         bool is_inline) const;
   void GenerateClearingCode(io::Printer* printer) const;
   void GenerateMergingCode(io::Printer* printer) const;
   void GenerateSwappingCode(io::Printer* printer) const;
@@ -91,9 +63,10 @@ class RepeatedMessageFieldGenerator : public FieldGenerator {
 
  private:
   const FieldDescriptor* descriptor_;
+  const bool dependent_field_;
   map<string, string> variables_;
 
-  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(RepeatedMessageFieldGenerator);
+  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(MapFieldGenerator);
 };
 
 }  // namespace cpp
@@ -101,4 +74,4 @@ class RepeatedMessageFieldGenerator : public FieldGenerator {
 }  // namespace protobuf
 
 }  // namespace google
-#endif  // GOOGLE_PROTOBUF_COMPILER_CPP_MESSAGE_FIELD_H__
+#endif  // GOOGLE_PROTOBUF_COMPILER_CPP_MAP_FIELD_H__