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diff --git a/third_party/abseil_cpp/absl/debugging/leak_check.h b/third_party/abseil_cpp/absl/debugging/leak_check.h
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-// Copyright 2018 The Abseil Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-// -----------------------------------------------------------------------------
-// File: leak_check.h
-// -----------------------------------------------------------------------------
-//
-// This file contains functions that affect leak checking behavior within
-// targets built with the LeakSanitizer (LSan), a memory leak detector that is
-// integrated within the AddressSanitizer (ASan) as an additional component, or
-// which can be used standalone. LSan and ASan are included (or can be provided)
-// as additional components for most compilers such as Clang, gcc and MSVC.
-// Note: this leak checking API is not yet supported in MSVC.
-// Leak checking is enabled by default in all ASan builds.
-//
-// See https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer
-//
-// -----------------------------------------------------------------------------
-#ifndef ABSL_DEBUGGING_LEAK_CHECK_H_
-#define ABSL_DEBUGGING_LEAK_CHECK_H_
-
-#include <cstddef>
-
-#include "absl/base/config.h"
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-
-// HaveLeakSanitizer()
-//
-// Returns true if a leak-checking sanitizer (either ASan or standalone LSan) is
-// currently built into this target.
-bool HaveLeakSanitizer();
-
-// DoIgnoreLeak()
-//
-// Implements `IgnoreLeak()` below. This function should usually
-// not be called directly; calling `IgnoreLeak()` is preferred.
-void DoIgnoreLeak(const void* ptr);
-
-// IgnoreLeak()
-//
-// Instruct the leak sanitizer to ignore leak warnings on the object referenced
-// by the passed pointer, as well as all heap objects transitively referenced
-// by it. The passed object pointer can point to either the beginning of the
-// object or anywhere within it.
-//
-// Example:
-//
-//   static T* obj = IgnoreLeak(new T(...));
-//
-// If the passed `ptr` does not point to an actively allocated object at the
-// time `IgnoreLeak()` is called, the call is a no-op; if it is actively
-// allocated, the object must not get deallocated later.
-//
-template <typename T>
-T* IgnoreLeak(T* ptr) {
-  DoIgnoreLeak(ptr);
-  return ptr;
-}
-
-// LeakCheckDisabler
-//
-// This helper class indicates that any heap allocations done in the code block
-// covered by the scoped object, which should be allocated on the stack, will
-// not be reported as leaks. Leak check disabling will occur within the code
-// block and any nested function calls within the code block.
-//
-// Example:
-//
-//   void Foo() {
-//     LeakCheckDisabler disabler;
-//     ... code that allocates objects whose leaks should be ignored ...
-//   }
-//
-// REQUIRES: Destructor runs in same thread as constructor
-class LeakCheckDisabler {
- public:
-  LeakCheckDisabler();
-  LeakCheckDisabler(const LeakCheckDisabler&) = delete;
-  LeakCheckDisabler& operator=(const LeakCheckDisabler&) = delete;
-  ~LeakCheckDisabler();
-};
-
-// RegisterLivePointers()
-//
-// Registers `ptr[0,size-1]` as pointers to memory that is still actively being
-// referenced and for which leak checking should be ignored. This function is
-// useful if you store pointers in mapped memory, for memory ranges that we know
-// are correct but for which normal analysis would flag as leaked code.
-void RegisterLivePointers(const void* ptr, size_t size);
-
-// UnRegisterLivePointers()
-//
-// Deregisters the pointers previously marked as active in
-// `RegisterLivePointers()`, enabling leak checking of those pointers.
-void UnRegisterLivePointers(const void* ptr, size_t size);
-
-ABSL_NAMESPACE_END
-}  // namespace absl
-
-#endif  // ABSL_DEBUGGING_LEAK_CHECK_H_