Create snapshot/mac and move some files from snapshot and util to there

snapshot/memory_snapshot_mac.cc

-// Copyright 2014 The Crashpad Authors. All rights reserved.
-//
-// 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
-//
-//     http://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.
-
-#include "snapshot/memory_snapshot_mac.h"
-
-#include "util/mach/task_memory.h"
-
-namespace crashpad {
-namespace internal {
-
-MemorySnapshotMac::MemorySnapshotMac()
-    : MemorySnapshot(),
-      process_reader_(nullptr),
-      address_(0),
-      size_(0),
-      initialized_() {
-}
-
-MemorySnapshotMac::~MemorySnapshotMac() {
-}
-
-void MemorySnapshotMac::Initialize(ProcessReader* process_reader,
-                                   uint64_t address,
-                                   uint64_t size) {
-  INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
-  process_reader_ = process_reader;
-  address_ = address;
-  size_ = size;
-  INITIALIZATION_STATE_SET_VALID(initialized_);
-}
-
-uint64_t MemorySnapshotMac::Address() const {
-  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
-  return address_;
-}
-
-size_t MemorySnapshotMac::Size() const {
-  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
-  return size_;
-}
-
-bool MemorySnapshotMac::Read(Delegate* delegate) const {
-  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
-  scoped_ptr<uint8_t[]> buffer(new uint8_t[size_]);
-  if (!process_reader_->Memory()->Read(address_, size_, buffer.get())) {
-    return false;
-  }
-  return delegate->MemorySnapshotDelegateRead(buffer.get(), size_);
-}
-
-}  // namespace internal
-}  // namespace crashpad