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

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

Index: third_party/protobuf/src/google/protobuf/util/internal/object_writer.h
diff --git a/third_party/protobuf/src/google/protobuf/util/internal/object_writer.h b/third_party/protobuf/src/google/protobuf/util/internal/object_writer.h
deleted file mode 100644
index 20bd3627fa4a67fb81263f32eca7b4ac07c91e49..0000000000000000000000000000000000000000
--- a/third_party/protobuf/src/google/protobuf/util/internal/object_writer.h
+++ /dev/null
@@ -1,126 +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 GOOGLE_PROTOBUF_UTIL_CONVERTER_OBJECT_WRITER_H__
-#define GOOGLE_PROTOBUF_UTIL_CONVERTER_OBJECT_WRITER_H__
-
-#include <google/protobuf/stubs/common.h>
-#include <google/protobuf/stubs/stringpiece.h>
-
-namespace google {
-namespace protobuf {
-namespace util {
-namespace converter {
-
-class DataPiece;
-
-// An ObjectWriter is an interface for writing a stream of events
-// representing objects and collections. Implementation of this
-// interface can be used to write an object stream to an in-memory
-// structure, protobufs, JSON, XML, or any other output format
-// desired. The ObjectSource interface is typically used as the
-// source of an object stream.
-//
-// See JsonObjectWriter for a sample implementation of ObjectWriter
-// and its use.
-//
-// Derived classes could be thread-unsafe.
-//
-// TODO(xinb): seems like a prime candidate to apply the RAII paradigm
-// and get rid the need to call EndXXX().
-class LIBPROTOBUF_EXPORT ObjectWriter {
- public:
-  virtual ~ObjectWriter() {}
-
-  // Starts an object. If the name is empty, the object will not be named.
-  virtual ObjectWriter* StartObject(StringPiece name) = 0;
-
-  // Ends an object.
-  virtual ObjectWriter* EndObject() = 0;
-
-  // Starts a list. If the name is empty, the list will not be named.
-  virtual ObjectWriter* StartList(StringPiece name) = 0;
-
-  // Ends a list.
-  virtual ObjectWriter* EndList() = 0;
-
-  // Renders a boolean value.
-  virtual ObjectWriter* RenderBool(StringPiece name, bool value) = 0;
-
-  // Renders an 32-bit integer value.
-  virtual ObjectWriter* RenderInt32(StringPiece name, int32 value) = 0;
-
-  // Renders an 32-bit unsigned integer value.
-  virtual ObjectWriter* RenderUint32(StringPiece name, uint32 value) = 0;
-
-  // Renders a 64-bit integer value.
-  virtual ObjectWriter* RenderInt64(StringPiece name, int64 value) = 0;
-
-  // Renders an 64-bit unsigned integer value.
-  virtual ObjectWriter* RenderUint64(StringPiece name, uint64 value) = 0;
-
-  // Renders a double value.
-  virtual ObjectWriter* RenderDouble(StringPiece name, double value) = 0;
-
-  // Renders a float value.
-  virtual ObjectWriter* RenderFloat(StringPiece name, float value) = 0;
-
-  // Renders a StringPiece value. This is for rendering strings.
-  virtual ObjectWriter* RenderString(StringPiece name, StringPiece value) = 0;
-
-  // Renders a bytes value.
-  virtual ObjectWriter* RenderBytes(StringPiece name, StringPiece value) = 0;
-
-  // Renders a Null value.
-  virtual ObjectWriter* RenderNull(StringPiece name) = 0;
-
-  // Disables case normalization. Any RenderTYPE call after calling this
-  // function will output the name field as-is. No normalization is attempted on
-  // it. This setting is reset immediately after the next RenderTYPE is called.
-  virtual ObjectWriter* DisableCaseNormalizationForNextKey() { return this; }
-
-  // Renders a DataPiece object to a ObjectWriter.
-  static void RenderDataPieceTo(const DataPiece& data, StringPiece name,
-                                ObjectWriter* ow);
-
- protected:
-  ObjectWriter() {}
-
- private:
-  // Do not add any data members to this class.
-  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ObjectWriter);
-};
-
-}  // namespace converter
-}  // namespace util
-}  // namespace protobuf
-
-}  // namespace google
-#endif  // GOOGLE_PROTOBUF_UTIL_CONVERTER_OBJECT_WRITER_H__