Update //third_party/protobuf to version 3.

third_party/protobuf/src/google/protobuf/dynamic_message.h

Index: third_party/protobuf/src/google/protobuf/dynamic_message.h
diff --git a/third_party/protobuf/src/google/protobuf/dynamic_message.h b/third_party/protobuf/src/google/protobuf/dynamic_message.h
index b3d1e5d28e733bada4be9853db5e1f942938364d..f74cd7dd25154fa4536e280dfafb9d388df75e64 100644
--- a/third_party/protobuf/src/google/protobuf/dynamic_message.h
+++ b/third_party/protobuf/src/google/protobuf/dynamic_message.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
@@ -38,8 +38,14 @@
 #ifndef GOOGLE_PROTOBUF_DYNAMIC_MESSAGE_H__
 #define GOOGLE_PROTOBUF_DYNAMIC_MESSAGE_H__
 
+#include <memory>
+#ifndef _SHARED_PTR_H
+#include <google/protobuf/stubs/shared_ptr.h>
+#endif
+
 #include <google/protobuf/message.h>
 #include <google/protobuf/stubs/common.h>
+#include <google/protobuf/stubs/mutex.h>
 
 namespace google {
 namespace protobuf {
@@ -121,12 +127,22 @@ class LIBPROTOBUF_EXPORT DynamicMessageFactory : public MessageFactory {
   // public header (for good reason), but dynamic_message.h is, and public
   // headers may only #include other public headers.
   struct PrototypeMap;
-  scoped_ptr<PrototypeMap> prototypes_;
+  google::protobuf::scoped_ptr<PrototypeMap> prototypes_;
   mutable Mutex prototypes_mutex_;
 
   friend class DynamicMessage;
   const Message* GetPrototypeNoLock(const Descriptor* type);
 
+  // Construct default oneof instance for reflection usage if oneof
+  // is defined.
+  static void ConstructDefaultOneofInstance(const Descriptor* type,
+                                            const int offsets[],
+                                            void* default_oneof_instance);
+  // Delete default oneof instance. Called by ~DynamicMessageFactory.
+  static void DeleteDefaultOneofInstance(const Descriptor* type,
+                                         const int offsets[],
+                                         void* default_oneof_instance);
+
   GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(DynamicMessageFactory);
 };