Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/fileapi/file_system_backend.cc

 // Copyright 2013 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 "chrome/browser/chromeos/fileapi/file_system_backend.h"
 
 #include <stddef.h>
 
+#include <memory>
+
 #include "base/command_line.h"
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
+#include "base/memory/ptr_util.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/chromeos/fileapi/file_access_permissions.h"
 #include "chrome/browser/chromeos/fileapi/file_system_backend_delegate.h"
 #include "chrome/browser/media_galleries/fileapi/media_file_system_backend.h"
 #include "chrome/common/url_constants.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/dbus/cros_disks_client.h"
 #include "storage/browser/fileapi/async_file_util.h"
 #include "storage/browser/fileapi/external_mount_points.h"
 #include "storage/browser/fileapi/file_stream_reader.h"
@@ skipping 251 matching lines @@
   DCHECK(url.is_valid());
 
   if (!IsAccessAllowed(url)) {
     *error_code = base::File::FILE_ERROR_SECURITY;
     return NULL;
   }
 
   if (url.type() == storage::kFileSystemTypeDeviceMediaAsFileStorage) {
     // MTP file operations run on MediaTaskRunner.
     return storage::FileSystemOperation::Create(
-        url,
-        context,
-        make_scoped_ptr(new storage::FileSystemOperationContext(
+        url, context,
+        base::WrapUnique(new storage::FileSystemOperationContext(
             context, MediaFileSystemBackend::MediaTaskRunner().get())));
   }
 
   DCHECK(url.type() == storage::kFileSystemTypeNativeLocal ||
          url.type() == storage::kFileSystemTypeRestrictedNativeLocal ||
          url.type() == storage::kFileSystemTypeDrive ||
          url.type() == storage::kFileSystemTypeProvided);
   return storage::FileSystemOperation::Create(
-      url,
-      context,
-      make_scoped_ptr(new storage::FileSystemOperationContext(context)));
+      url, context,
+      base::WrapUnique(new storage::FileSystemOperationContext(context)));
 }
 
 bool FileSystemBackend::SupportsStreaming(
     const storage::FileSystemURL& url) const {
   return url.type() == storage::kFileSystemTypeDrive ||
          url.type() == storage::kFileSystemTypeProvided ||
          url.type() == storage::kFileSystemTypeDeviceMediaAsFileStorage;
 }
 
 bool FileSystemBackend::HasInplaceCopyImplementation(
     storage::FileSystemType type) const {
   switch (type) {
     case storage::kFileSystemTypeDrive:
     case storage::kFileSystemTypeProvided:
     case storage::kFileSystemTypeDeviceMediaAsFileStorage:
       return true;
     case storage::kFileSystemTypeNativeLocal:
     case storage::kFileSystemTypeRestrictedNativeLocal:
       return false;
     default:
       NOTREACHED();
   }
   return true;
 }
 
-scoped_ptr<storage::FileStreamReader> FileSystemBackend::CreateFileStreamReader(
+std::unique_ptr<storage::FileStreamReader>
+FileSystemBackend::CreateFileStreamReader(
     const storage::FileSystemURL& url,
     int64_t offset,
     int64_t max_bytes_to_read,
     const base::Time& expected_modification_time,
     storage::FileSystemContext* context) const {
   DCHECK(url.is_valid());
 
   if (!IsAccessAllowed(url))
-    return scoped_ptr<storage::FileStreamReader>();
+    return std::unique_ptr<storage::FileStreamReader>();
 
   switch (url.type()) {
     case storage::kFileSystemTypeDrive:
       return drive_delegate_->CreateFileStreamReader(
           url, offset, max_bytes_to_read, expected_modification_time, context);
     case storage::kFileSystemTypeProvided:
       return file_system_provider_delegate_->CreateFileStreamReader(
           url, offset, max_bytes_to_read, expected_modification_time, context);
     case storage::kFileSystemTypeNativeLocal:
     case storage::kFileSystemTypeRestrictedNativeLocal:
-      return scoped_ptr<storage::FileStreamReader>(
+      return std::unique_ptr<storage::FileStreamReader>(
           storage::FileStreamReader::CreateForFileSystemFile(
               context, url, offset, expected_modification_time));
     case storage::kFileSystemTypeDeviceMediaAsFileStorage:
       return mtp_delegate_->CreateFileStreamReader(
           url, offset, max_bytes_to_read, expected_modification_time, context);
     default:
       NOTREACHED();
   }
-  return scoped_ptr<storage::FileStreamReader>();
+  return std::unique_ptr<storage::FileStreamReader>();
 }
 
-scoped_ptr<storage::FileStreamWriter> FileSystemBackend::CreateFileStreamWriter(
+std::unique_ptr<storage::FileStreamWriter>
+FileSystemBackend::CreateFileStreamWriter(
     const storage::FileSystemURL& url,
     int64_t offset,
     storage::FileSystemContext* context) const {
   DCHECK(url.is_valid());
 
   if (!IsAccessAllowed(url))
-    return scoped_ptr<storage::FileStreamWriter>();
+    return std::unique_ptr<storage::FileStreamWriter>();
 
   switch (url.type()) {
     case storage::kFileSystemTypeDrive:
       return drive_delegate_->CreateFileStreamWriter(url, offset, context);
     case storage::kFileSystemTypeProvided:
       return file_system_provider_delegate_->CreateFileStreamWriter(
           url, offset, context);
     case storage::kFileSystemTypeNativeLocal:
-      return scoped_ptr<storage::FileStreamWriter>(
+      return std::unique_ptr<storage::FileStreamWriter>(
           storage::FileStreamWriter::CreateForLocalFile(
-              context->default_file_task_runner(),
-              url.path(),
-              offset,
+              context->default_file_task_runner(), url.path(), offset,
               storage::FileStreamWriter::OPEN_EXISTING_FILE));
     case storage::kFileSystemTypeRestrictedNativeLocal:
       // Restricted native local file system is read only.
-      return scoped_ptr<storage::FileStreamWriter>();
+      return std::unique_ptr<storage::FileStreamWriter>();
     case storage::kFileSystemTypeDeviceMediaAsFileStorage:
       return mtp_delegate_->CreateFileStreamWriter(url, offset, context);
     default:
       NOTREACHED();
   }
-  return scoped_ptr<storage::FileStreamWriter>();
+  return std::unique_ptr<storage::FileStreamWriter>();
 }
 
 bool FileSystemBackend::GetVirtualPath(const base::FilePath& filesystem_path,
                                        base::FilePath* virtual_path) const {
   return mount_points_->GetVirtualPath(filesystem_path, virtual_path) ||
          system_mount_points_->GetVirtualPath(filesystem_path, virtual_path);
 }
 
 void FileSystemBackend::GetRedirectURLForContents(
     const storage::FileSystemURL& url,
@@ skipping 29 matching lines @@
     const base::FilePath& entry_path) const {
   base::FilePath virtual_path;
   if (!GetVirtualPath(entry_path, &virtual_path))
     return storage::FileSystemURL();
 
   return context->CreateCrackedFileSystemURL(
       GURL() /* origin */, storage::kFileSystemTypeExternal, virtual_path);
 }
 
 }  // namespace chromeos