Update //third_party/protobuf to version 3.

third_party/protobuf/objectivec/Tests/GPBObjectiveCPlusPlusTest.mm

 // Protocol Buffers - Google's data interchange format
-// Copyright 2009 Google Inc.  All rights reserved.
-// http://code.google.com/p/protobuf/
+// Copyright 2013 Google Inc.  All rights reserved.
+// 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: brianolson@google.com (Brian Olson)
-//  Based on original Protocol Buffers design by
-//  Sanjay Ghemawat, Jeff Dean, and others.
+
+#import "GPBTestUtilities.h"
+
+
 //
-// Test program to verify that GzipInputStream is compatible with command line
-// gunzip or java.util.zip.GzipInputStream
+// This is just a compile test (here to make sure things never regress).
 //
-// Reads gzip stream on standard input and writes decompressed data to standard
-// output.
+// Objective C++ can run into issues with how the NS_ENUM/CF_ENUM declartion
+// works because of the C++ spec being used for that compilation unit. So
+// the fact that these imports all work without errors/warning means things
+// are still good.
+//
+// The "well know types" should have cross file enums needing imports.
+#import "GPBProtocolBuffers.h"
+// Some of the tests explicitly use cross file enums also.
+#import "google/protobuf/Unittest.pbobjc.h"
+#import "google/protobuf/UnittestImport.pbobjc.h"
 
-#include "config.h"
+// Sanity check the conditions of the test within the Xcode project.
+#if !__cplusplus
+  #error This isn't compiled as Objective C++?
+#elif __cplusplus >= 201103L
+  // If this trips, it means the Xcode default might have change (or someone
+  // edited the testing project) and it might be time to revisit the GPB_ENUM
+  // define in GPBBootstrap.h.
+  #warning Did the Xcode default for C++ spec change?
+#endif
 
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
 
-#include <google/protobuf/io/gzip_stream.h>
-#include <google/protobuf/io/zero_copy_stream_impl.h>
+// Dummy XCTest.
+@interface GPBObjectiveCPlusPlusTests : GPBTestCase
+@end
 
-using google::protobuf::io::FileInputStream;
-using google::protobuf::io::GzipInputStream;
-
-int main(int argc, const char** argv) {
-  FileInputStream fin(STDIN_FILENO);
-  GzipInputStream in(&fin);
-
-  while (true) {
-    const void* inptr;
-    int inlen;
-    bool ok;
-    ok = in.Next(&inptr, &inlen);
-    if (!ok) {
-      break;
-    }
-    if (inlen > 0) {
-      int err = write(STDOUT_FILENO, inptr, inlen);
-      assert(err == inlen);
-    }
-  }
-
-  return 0;
+@implementation GPBObjectiveCPlusPlusTests
+- (void)testCPlusPlus {
+  // Nothing, This was a compile test.
+  XCTAssertTrue(YES);
 }
+@end