|  | // 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 |