Update //third_party/protobuf to version 3.

third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc

Index: third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc
diff --git a/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc b/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc
index b7c1766bff896df6e2f93d62a1b0fef4e7888b78..c3e9fe7448661eb209055dc77f0071c1b5bd22e6 100644
--- a/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc
+++ b/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_bootstrap_unittest.cc
@@ -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
@@ -48,7 +48,7 @@
 #include <google/protobuf/compiler/importer.h>
 #include <google/protobuf/descriptor.h>
 #include <google/protobuf/io/zero_copy_stream_impl.h>
-#include <google/protobuf/stubs/map-util.h>
+#include <google/protobuf/stubs/map_util.h>
 #include <google/protobuf/stubs/stl_util.h>
 #include <google/protobuf/stubs/strutil.h>
 #include <google/protobuf/stubs/substitute.h>
@@ -93,12 +93,13 @@ class MockGeneratorContext : public GeneratorContext {
       << "Generator failed to generate file: " << virtual_filename;
 
     string actual_contents;
-    File::ReadFileToStringOrDie(
-      TestSourceDir() + "/" + physical_filename,
-      &actual_contents);
+    GOOGLE_CHECK_OK(
+        File::GetContents(TestSourceDir() + "/" + physical_filename,
+                          &actual_contents, true));
     EXPECT_TRUE(actual_contents == *expected_contents)
       << physical_filename << " needs to be regenerated.  Please run "
-         "generate_descriptor_proto.sh and add this file "
+         "google/protobuf/compiler/release_compiler.sh and "
+         "generate_descriptor_proto.sh. Then add this file "
          "to your CL.";
   }
 
@@ -132,8 +133,7 @@ TEST(BootstrapTest, GeneratedDescriptorMatches) {
   CppGenerator generator;
   MockGeneratorContext context;
   string error;
-  string parameter;
-  parameter = "dllexport_decl=LIBPROTOBUF_EXPORT";
+  string parameter = "dllexport_decl=LIBPROTOBUF_EXPORT";
   ASSERT_TRUE(generator.Generate(proto_file, parameter,
                                  &context, &error));
   parameter = "dllexport_decl=LIBPROTOC_EXPORT";