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-rw-r--r--chromium/base/memory/discardable_memory_ashmem.cc79
1 files changed, 0 insertions, 79 deletions
diff --git a/chromium/base/memory/discardable_memory_ashmem.cc b/chromium/base/memory/discardable_memory_ashmem.cc
deleted file mode 100644
index df0697c9ae9..00000000000
--- a/chromium/base/memory/discardable_memory_ashmem.cc
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright 2014 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/memory/discardable_memory_ashmem.h"
-
-#include "base/memory/discardable_memory_ashmem_allocator.h"
-
-namespace base {
-namespace internal {
-
-DiscardableMemoryAshmem::DiscardableMemoryAshmem(
- size_t bytes,
- DiscardableMemoryAshmemAllocator* allocator,
- DiscardableMemoryManager* manager)
- : bytes_(bytes),
- allocator_(allocator),
- manager_(manager),
- is_locked_(false) {
- manager_->Register(this, bytes_);
-}
-
-DiscardableMemoryAshmem::~DiscardableMemoryAshmem() {
- if (is_locked_)
- Unlock();
-
- manager_->Unregister(this);
-}
-
-bool DiscardableMemoryAshmem::Initialize() {
- return Lock() != DISCARDABLE_MEMORY_LOCK_STATUS_FAILED;
-}
-
-DiscardableMemoryLockStatus DiscardableMemoryAshmem::Lock() {
- DCHECK(!is_locked_);
-
- bool purged = false;
- if (!manager_->AcquireLock(this, &purged))
- return DISCARDABLE_MEMORY_LOCK_STATUS_FAILED;
-
- is_locked_ = true;
- return purged ? DISCARDABLE_MEMORY_LOCK_STATUS_PURGED
- : DISCARDABLE_MEMORY_LOCK_STATUS_SUCCESS;
-}
-
-void DiscardableMemoryAshmem::Unlock() {
- DCHECK(is_locked_);
- manager_->ReleaseLock(this);
- is_locked_ = false;
-}
-
-void* DiscardableMemoryAshmem::Memory() const {
- DCHECK(is_locked_);
- DCHECK(ashmem_chunk_);
- return ashmem_chunk_->Memory();
-}
-
-bool DiscardableMemoryAshmem::AllocateAndAcquireLock() {
- if (ashmem_chunk_)
- return ashmem_chunk_->Lock();
-
- ashmem_chunk_ = allocator_->Allocate(bytes_);
- return false;
-}
-
-void DiscardableMemoryAshmem::ReleaseLock() {
- ashmem_chunk_->Unlock();
-}
-
-void DiscardableMemoryAshmem::Purge() {
- ashmem_chunk_.reset();
-}
-
-bool DiscardableMemoryAshmem::IsMemoryResident() const {
- return true;
-}
-
-} // namespace internal
-} // namespace base