Update //third_party/protobuf to version 3.

third_party/protobuf/java/src/main/java/com/google/protobuf/BlockingService.java

Index: third_party/protobuf/java/src/main/java/com/google/protobuf/BlockingService.java
diff --git a/third_party/protobuf/src/google/protobuf/compiler/main.cc b/third_party/protobuf/java/src/main/java/com/google/protobuf/BlockingService.java
similarity index 59%
copy from third_party/protobuf/src/google/protobuf/compiler/main.cc
copy to third_party/protobuf/java/src/main/java/com/google/protobuf/BlockingService.java
index 1afc5d611130c70a812c41cbc6e848e45616b269..d01f0b8ff0fa320a0b8774b1a1d0db8763519223 100644
--- a/third_party/protobuf/src/google/protobuf/compiler/main.cc
+++ b/third_party/protobuf/java/src/main/java/com/google/protobuf/BlockingService.java
@@ -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
@@ -28,34 +28,37 @@
 // (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)
+package com.google.protobuf;
 
-#include <google/protobuf/compiler/command_line_interface.h>
-#include <google/protobuf/compiler/cpp/cpp_generator.h>
-#include <google/protobuf/compiler/python/python_generator.h>
-#include <google/protobuf/compiler/java/java_generator.h>
+/**
+ * Blocking equivalent to {@link Service}.
+ *
+ * @author kenton@google.com Kenton Varda
+ * @author cpovirk@google.com Chris Povirk
+ */
+public interface BlockingService {
+  /**
+   * Equivalent to {@link Service#getDescriptorForType}.
+   */
+  Descriptors.ServiceDescriptor getDescriptorForType();
 
+  /**
+   * Equivalent to {@link Service#callMethod}, except that
+   * {@code callBlockingMethod()} returns the result of the RPC or throws a
+   * {@link ServiceException} if there is a failure, rather than passing the
+   * information to a callback.
+   */
+  Message callBlockingMethod(Descriptors.MethodDescriptor method,
+                             RpcController controller,
+                             Message request) throws ServiceException;
 
-int main(int argc, char* argv[]) {
+  /**
+   * Equivalent to {@link Service#getRequestPrototype}.
+   */
+  Message getRequestPrototype(Descriptors.MethodDescriptor method);
 
-  google::protobuf::compiler::CommandLineInterface cli;
-  cli.AllowPlugins("protoc-");
-
-  // Proto2 C++
-  google::protobuf::compiler::cpp::CppGenerator cpp_generator;
-  cli.RegisterGenerator("--cpp_out", "--cpp_opt", &cpp_generator,
-                        "Generate C++ header and source.");
-
-  // Proto2 Java
-  google::protobuf::compiler::java::JavaGenerator java_generator;
-  cli.RegisterGenerator("--java_out", &java_generator,
-                        "Generate Java source file.");
-
-
-  // Proto2 Python
-  google::protobuf::compiler::python::Generator py_generator;
-  cli.RegisterGenerator("--python_out", &py_generator,
-                        "Generate Python source file.");
-
-  return cli.Run(argc, argv);
+  /**
+   * Equivalent to {@link Service#getResponsePrototype}.
+   */
+  Message getResponsePrototype(Descriptors.MethodDescriptor method);
 }