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

third_party/protobuf/python/google/protobuf/internal/api_implementation.cc

Index: third_party/protobuf/python/google/protobuf/internal/api_implementation.cc
diff --git a/third_party/protobuf/python/google/protobuf/internal/api_implementation.cc b/third_party/protobuf/python/google/protobuf/internal/api_implementation.cc
deleted file mode 100644
index 6db12e8dc676579657103e327495422f94b807a2..0000000000000000000000000000000000000000
--- a/third_party/protobuf/python/google/protobuf/internal/api_implementation.cc
+++ /dev/null
@@ -1,129 +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.
-
-#include <Python.h>
-
-namespace google {
-namespace protobuf {
-namespace python {
-
-// Version constant.
-// This is either 0 for python, 1 for CPP V1, 2 for CPP V2.
-//
-// 0 is default and is equivalent to
-//   PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=python
-//
-// 1 is set with -DPYTHON_PROTO2_CPP_IMPL_V1 and is equivalent to
-//   PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=cpp
-// and
-//   PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION_VERSION=1
-//
-// 2 is set with -DPYTHON_PROTO2_CPP_IMPL_V2 and is equivalent to
-//   PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=cpp
-// and
-//   PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION_VERSION=2
-#ifdef PYTHON_PROTO2_CPP_IMPL_V1
-#error "PYTHON_PROTO2_CPP_IMPL_V1 is no longer supported."
-#else
-#ifdef PYTHON_PROTO2_CPP_IMPL_V2
-static int kImplVersion = 2;
-#else
-#ifdef PYTHON_PROTO2_PYTHON_IMPL
-static int kImplVersion = 0;
-#else
-
-static int kImplVersion = -1;  // -1 means "Unspecified by compiler flags".
-
-#endif  // PYTHON_PROTO2_PYTHON_IMPL
-#endif  // PYTHON_PROTO2_CPP_IMPL_V2
-#endif  // PYTHON_PROTO2_CPP_IMPL_V1
-
-static const char* kImplVersionName = "api_version";
-
-static const char* kModuleName = "_api_implementation";
-static const char kModuleDocstring[] =
-"_api_implementation is a module that exposes compile-time constants that\n"
-"determine the default API implementation to use for Python proto2.\n"
-"\n"
-"It complements api_implementation.py by setting defaults using compile-time\n"
-"constants defined in C, such that one can set defaults at compilation\n"
-"(e.g. with blaze flag --copt=-DPYTHON_PROTO2_CPP_IMPL_V2).";
-
-#if PY_MAJOR_VERSION >= 3
-static struct PyModuleDef _module = {
-  PyModuleDef_HEAD_INIT,
-  kModuleName,
-  kModuleDocstring,
-  -1,
-  NULL,
-  NULL,
-  NULL,
-  NULL,
-  NULL
-};
-#define INITFUNC PyInit__api_implementation
-#define INITFUNC_ERRORVAL NULL
-#else
-#define INITFUNC init_api_implementation
-#define INITFUNC_ERRORVAL
-#endif
-
-extern "C" {
-  PyMODINIT_FUNC INITFUNC() {
-#if PY_MAJOR_VERSION >= 3
-    PyObject *module = PyModule_Create(&_module);
-#else
-    PyObject *module = Py_InitModule3(
-        const_cast<char*>(kModuleName),
-        NULL,
-        const_cast<char*>(kModuleDocstring));
-#endif
-    if (module == NULL) {
-      return INITFUNC_ERRORVAL;
-    }
-
-    // Adds the module variable "api_version".
-    if (PyModule_AddIntConstant(
-        module,
-        const_cast<char*>(kImplVersionName),
-        kImplVersion))
-#if PY_MAJOR_VERSION < 3
-      return;
-#else
-      { Py_DECREF(module); return NULL; }
-
-    return module;
-#endif
-  }
-}
-
-}  // namespace python
-}  // namespace protobuf
-}  // namespace google