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

third_party/protobuf/src/google/protobuf/arena_test_util.h

Index: third_party/protobuf/src/google/protobuf/arena_test_util.h
diff --git a/third_party/protobuf/src/google/protobuf/arena_test_util.h b/third_party/protobuf/src/google/protobuf/arena_test_util.h
deleted file mode 100644
index 690cc706ee5f2d029752fe6f1b323130046938e5..0000000000000000000000000000000000000000
--- a/third_party/protobuf/src/google/protobuf/arena_test_util.h
+++ /dev/null
@@ -1,60 +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_ARENA_TEST_UTIL_H__
-#define GOOGLE_PROTOBUF_ARENA_TEST_UTIL_H__
-
-
-namespace google {
-namespace protobuf {
-namespace internal {
-
-class NoHeapChecker {
- public:
-  NoHeapChecker() {
-    capture_alloc.Hook();
-  }
-  ~NoHeapChecker();
- private:
-  class NewDeleteCapture {
-   public:
-    // TOOD(xiaofeng): Implement this for opensource protobuf.
-    void Hook() {}
-    void Unhook() {}
-    int alloc_count() { return 0; }
-    int free_count() { return 0; }
-  } capture_alloc;
-};
-
-}  // namespace internal
-}  // namespace protobuf
-
-}  // namespace google
-#endif  // GOOGLE_PROTOBUF_ARENA_TEST_UTIL_H__