Update //third_party/protobuf to version 3.

third_party/protobuf/src/google/protobuf/any.h

 // 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
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 // copyright notice, this list of conditions and the following disclaimer
 // in the documentation and/or other materials provided with the
 // distribution.
 //     * Neither the name of Google Inc. nor the names of its
 // contributors may be used to endorse or promote products derived from
 // this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (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.
-//
-// This header is logically internal, but is made public because it is used
-// from protocol-compiler-generated code, which may reside in other components.
+#ifndef GOOGLE_PROTOBUF_ANY_H__
+#define GOOGLE_PROTOBUF_ANY_H__
 
-#ifndef GOOGLE_PROTOBUF_REFLECTION_OPS_H__
-#define GOOGLE_PROTOBUF_REFLECTION_OPS_H__
+#include <string>
 
 #include <google/protobuf/stubs/common.h>
+#include <google/protobuf/descriptor.h>
 #include <google/protobuf/message.h>
+#include <google/protobuf/arenastring.h>
 
 namespace google {
 namespace protobuf {
 namespace internal {
 
-// Basic operations that can be performed using reflection.
-// These can be used as a cheap way to implement the corresponding
-// methods of the Message interface, though they are likely to be
-// slower than implementations tailored for the specific message type.
-//
-// This class should stay limited to operations needed to implement
-// the Message interface.
-//
-// This class is really a namespace that contains only static methods.
-class LIBPROTOBUF_EXPORT ReflectionOps {
+// Helper class used to implement google::protobuf::Any.
+class LIBPROTOBUF_EXPORT AnyMetadata {
+  typedef ArenaStringPtr UrlType;
+  typedef ArenaStringPtr ValueType;
  public:
-  static void Copy(const Message& from, Message* to);
-  static void Merge(const Message& from, Message* to);
-  static void Clear(Message* message);
-  static bool IsInitialized(const Message& message);
-  static void DiscardUnknownFields(Message* message);
+  // AnyMetadata does not take ownership of "type_url" and "value".
+  AnyMetadata(UrlType* type_url, ValueType* value);
 
-  // Finds all unset required fields in the message and adds their full
-  // paths (e.g. "foo.bar[5].baz") to *names.  "prefix" will be attached to
-  // the front of each name.
-  static void FindInitializationErrors(const Message& message,
-                                       const string& prefix,
-                                       vector<string>* errors);
+  void PackFrom(const Message& message);
+
+  bool UnpackTo(Message* message) const;
+
+  template<typename T>
+  bool Is() const {
+    return InternalIs(T::default_instance().GetDescriptor());
+  }
 
  private:
-  // All methods are static.  No need to construct.
-  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ReflectionOps);
+  bool InternalIs(const Descriptor* message) const;
+
+  UrlType* type_url_;
+  ValueType* value_;
+
+  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(AnyMetadata);
 };
 
+extern const char kAnyFullTypeName[];          // "google.protobuf.Any".
+extern const char kTypeGoogleApisComPrefix[];  // "type.googleapis.com/".
+extern const char kTypeGoogleProdComPrefix[];  // "type.googleprod.com/".
+
+// Get the proto type name from Any::type_url value. For example, passing
+// "type.googleapis.com/rpc.QueryOrigin" will return "rpc.QueryOrigin" in
+// *full_type_name. Returns false if type_url does not start with
+// "type.googleapis.com" or "type.googleprod.com".
+bool ParseAnyTypeUrl(const string& type_url, string* full_type_name);
+
+// See if message is of type google.protobuf.Any, if so, return the descriptors
+// for "type_url" and "value" fields.
+bool GetAnyFieldDescriptors(const Message& message,
+                            const FieldDescriptor** type_url_field,
+                            const FieldDescriptor** value_field);
+
 }  // namespace internal
 }  // namespace protobuf
 
 }  // namespace google
-#endif  // GOOGLE_PROTOBUF_REFLECTION_OPS_H__
+#endif  // GOOGLE_PROTOBUF_ANY_H__