Revert https://codereview.chromium.org/1291903002 (protobuf roll).

third_party/protobuf/src/google/protobuf/util/internal/json_escaping.h

Index: third_party/protobuf/src/google/protobuf/util/internal/json_escaping.h
diff --git a/third_party/protobuf/src/google/protobuf/util/internal/json_escaping.h b/third_party/protobuf/src/google/protobuf/util/internal/json_escaping.h
deleted file mode 100644
index e3e329fc969a67d887e3302d500db6c9759a2b2c..0000000000000000000000000000000000000000
--- a/third_party/protobuf/src/google/protobuf/util/internal/json_escaping.h
+++ /dev/null
@@ -1,91 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 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.
-
-#ifndef NET_PROTO2_UTIL_CONVERTER_STRINGS_JSON_ESCAPING_H_
-#define NET_PROTO2_UTIL_CONVERTER_STRINGS_JSON_ESCAPING_H_
-
-#include <google/protobuf/stubs/common.h>
-#include <google/protobuf/stubs/bytestream.h>
-
-namespace google {
-namespace protobuf {
-namespace util {
-namespace converter {
-
-class JsonEscaping {
- public:
-  // The minimum value of a unicode high-surrogate code unit in the utf-16
-  // encoding. A high-surrogate is also known as a leading-surrogate.
-  // See http://www.unicode.org/glossary/#high_surrogate_code_unit
-  static const uint16 kMinHighSurrogate = 0xd800;
-
-  // The maximum value of a unicide high-surrogate code unit in the utf-16
-  // encoding. A high-surrogate is also known as a leading-surrogate.
-  // See http://www.unicode.org/glossary/#high_surrogate_code_unit
-  static const uint16 kMaxHighSurrogate = 0xdbff;
-
-  // The minimum value of a unicode low-surrogate code unit in the utf-16
-  // encoding. A low-surrogate is also known as a trailing-surrogate.
-  // See http://www.unicode.org/glossary/#low_surrogate_code_unit
-  static const uint16 kMinLowSurrogate = 0xdc00;
-
-  // The maximum value of a unicode low-surrogate code unit in the utf-16
-  // encoding. A low-surrogate is also known as a trailing surrogate.
-  // See http://www.unicode.org/glossary/#low_surrogate_code_unit
-  static const uint16 kMaxLowSurrogate = 0xdfff;
-
-  // The minimum value of a unicode supplementary code point.
-  // See http://www.unicode.org/glossary/#supplementary_code_point
-  static const uint32 kMinSupplementaryCodePoint = 0x010000;
-
-  // The minimum value of a unicode code point.
-  // See http://www.unicode.org/glossary/#code_point
-  static const uint32 kMinCodePoint = 0x000000;
-
-  // The maximum value of a unicode code point.
-  // See http://www.unicode.org/glossary/#code_point
-  static const uint32 kMaxCodePoint = 0x10ffff;
-
-  JsonEscaping() {}
-  virtual ~JsonEscaping() {}
-
-  // Escape the given ByteSource to the given ByteSink.
-  static void Escape(strings::ByteSource* input, strings::ByteSink* output);
-
- private:
-  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(JsonEscaping);
-};
-
-}  // namespace converter
-}  // namespace util
-}  // namespace protobuf
-
-#endif  // NET_PROTO2_UTIL_CONVERTER_STRINGS_JSON_ESCAPING_H_
-}  // namespace google