| // Copyright 2015 The Chromium Authors. All rights reserved. | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #include "base/profiler/native_stack_sampler.h" | 
 |  | 
 | #include "base/memory/ptr_util.h" | 
 |  | 
 | namespace base { | 
 |  | 
 | NativeStackSampler::StackBuffer::StackBuffer(size_t buffer_size) | 
 |     : buffer_(new uintptr_t[(buffer_size + sizeof(uintptr_t) - 1) / | 
 |                             sizeof(uintptr_t)]), | 
 |       size_(buffer_size) {} | 
 |  | 
 | NativeStackSampler::StackBuffer::~StackBuffer() = default; | 
 |  | 
 | NativeStackSampler::NativeStackSampler() = default; | 
 |  | 
 | NativeStackSampler::~NativeStackSampler() = default; | 
 |  | 
 | std::unique_ptr<NativeStackSampler::StackBuffer> | 
 | NativeStackSampler::CreateStackBuffer() { | 
 |   size_t size = GetStackBufferSize(); | 
 |   if (size == 0) | 
 |     return nullptr; | 
 |   return std::make_unique<StackBuffer>(size); | 
 | } | 
 |  | 
 | NativeStackSamplerTestDelegate::~NativeStackSamplerTestDelegate() = default; | 
 |  | 
 | NativeStackSamplerTestDelegate::NativeStackSamplerTestDelegate() = default; | 
 |  | 
 | }  // namespace base |