content/child/web_discardable_memory_impl.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/child/web_discardable_memory_impl.h"
   6
   7 #include "base/memory/discardable_memory.h"
   8 #include "base/memory/discardable_memory_allocator.h"
   9
  10 namespace content {
  11
  12 WebDiscardableMemoryImpl::~WebDiscardableMemoryImpl() {}
  13
  14 // static
  15 scoped_ptr<WebDiscardableMemoryImpl>
  16 WebDiscardableMemoryImpl::CreateLockedMemory(size_t size) {
  17   return make_scoped_ptr(new WebDiscardableMemoryImpl(
  18       base::DiscardableMemoryAllocator::GetInstance()
  19           ->AllocateLockedDiscardableMemory(size)));
  20 }
  21
  22 bool WebDiscardableMemoryImpl::lock() {
  23   return discardable_->Lock();
  24 }
  25
  26 void WebDiscardableMemoryImpl::unlock() {
  27   discardable_->Unlock();
  28 }
  29
  30 void* WebDiscardableMemoryImpl::data() {
  31   return discardable_->data();
  32 }
  33
  34 WebDiscardableMemoryImpl::WebDiscardableMemoryImpl(
  35     scoped_ptr<base::DiscardableMemory> memory)
  36     : discardable_(memory.Pass()) {
  37 }
  38
  39 }  // namespace content