fileapi: Rename FileSystemMountProvider to FileSystemBackend

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/cros_mount_point_provider.h"
+#include "chrome/browser/chromeos/fileapi/file_system_backend.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/synchronization/lock.h"
-#include "chrome/browser/chromeos/fileapi/cros_mount_point_provider_delegate.h"
 #include "chrome/browser/chromeos/fileapi/file_access_permissions.h"
+#include "chrome/browser/chromeos/fileapi/file_system_backend_delegate.h"
 #include "chromeos/dbus/cros_disks_client.h"
 #include "webkit/browser/blob/file_stream_reader.h"
 #include "webkit/browser/fileapi/async_file_util_adapter.h"
 #include "webkit/browser/fileapi/copy_or_move_file_validator.h"
 #include "webkit/browser/fileapi/external_mount_points.h"
 #include "webkit/browser/fileapi/file_system_context.h"
 #include "webkit/browser/fileapi/file_system_file_stream_reader.h"
 #include "webkit/browser/fileapi/file_system_operation_context.h"
 #include "webkit/browser/fileapi/file_system_task_runners.h"
 #include "webkit/browser/fileapi/file_system_url.h"
 #include "webkit/browser/fileapi/isolated_context.h"
 #include "webkit/browser/fileapi/isolated_file_util.h"
 #include "webkit/browser/fileapi/local_file_stream_writer.h"
 #include "webkit/browser/fileapi/local_file_system_operation.h"
 
 namespace {
 
 const char kChromeUIScheme[] = "chrome";
 
 }  // namespace
 
 namespace chromeos {
 
 // static
-bool CrosMountPointProvider::CanHandleURL(const fileapi::FileSystemURL& url) {
+bool FileSystemBackend::CanHandleURL(const fileapi::FileSystemURL& url) {
   if (!url.is_valid())
     return false;
   return url.type() == fileapi::kFileSystemTypeNativeLocal ||
          url.type() == fileapi::kFileSystemTypeRestrictedNativeLocal ||
          url.type() == fileapi::kFileSystemTypeDrive;
 }
 
-CrosMountPointProvider::CrosMountPointProvider(
-    CrosMountPointProviderDelegate* drive_delegate,
+FileSystemBackend::FileSystemBackend(
+    FileSystemBackendDelegate* drive_delegate,
     scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy,
     scoped_refptr<fileapi::ExternalMountPoints> mount_points,
     fileapi::ExternalMountPoints* system_mount_points)
     : special_storage_policy_(special_storage_policy),
       file_access_permissions_(new FileAccessPermissions()),
       local_file_util_(new fileapi::AsyncFileUtilAdapter(
           new fileapi::IsolatedFileUtil())),
       drive_delegate_(drive_delegate),
       mount_points_(mount_points),
       system_mount_points_(system_mount_points) {
 }
 
-CrosMountPointProvider::~CrosMountPointProvider() {
+FileSystemBackend::~FileSystemBackend() {
 }
 
-void CrosMountPointProvider::AddSystemMountPoints() {
+void FileSystemBackend::AddSystemMountPoints() {
   // RegisterFileSystem() is no-op if the mount point with the same name
   // already exists, hence it's safe to call without checking if a mount
   // point already exists or not.
 
   // TODO(satorux): "Downloads" directory should probably be per-profile. For
   // this to be per-profile, a unique directory path should be chosen per
   // profile, and the mount point should be added to
   // mount_points_. crbug.com/247236
   base::FilePath home_path;
   if (PathService::Get(base::DIR_HOME, &home_path)) {
@@ skipping 10 matching lines @@
   system_mount_points_->RegisterFileSystem(
       "removable",
       fileapi::kFileSystemTypeNativeLocal,
       chromeos::CrosDisksClient::GetRemovableDiskMountPoint());
   system_mount_points_->RegisterFileSystem(
       "oem",
       fileapi::kFileSystemTypeRestrictedNativeLocal,
       base::FilePath(FILE_PATH_LITERAL("/usr/share/oem")));
 }
 
-bool CrosMountPointProvider::CanHandleType(fileapi::FileSystemType type) const {
+bool FileSystemBackend::CanHandleType(fileapi::FileSystemType type) const {
   switch (type) {
     case fileapi::kFileSystemTypeExternal:
     case fileapi::kFileSystemTypeDrive:
     case fileapi::kFileSystemTypeRestrictedNativeLocal:
     case fileapi::kFileSystemTypeNativeLocal:
     case fileapi::kFileSystemTypeNativeForPlatformApp:
       return true;
     default:
       return false;
   }
 }
 
-void CrosMountPointProvider::OpenFileSystem(
+void FileSystemBackend::OpenFileSystem(
     const GURL& origin_url,
     fileapi::FileSystemType type,
     fileapi::OpenFileSystemMode mode,
     const OpenFileSystemCallback& callback) {
   DCHECK(fileapi::IsolatedContext::IsIsolatedType(type));
   // Nothing to validate for external filesystem.
   callback.Run(base::PLATFORM_FILE_OK);
 }
 
-fileapi::FileSystemQuotaUtil* CrosMountPointProvider::GetQuotaUtil() {
+fileapi::FileSystemQuotaUtil* FileSystemBackend::GetQuotaUtil() {
   // No quota support.
   return NULL;
 }
 
-bool CrosMountPointProvider::IsAccessAllowed(
+bool FileSystemBackend::IsAccessAllowed(
     const fileapi::FileSystemURL& url) const {
   if (!url.is_valid())
     return false;
 
   // Permit access to mount points from internal WebUI.
   const GURL& origin_url = url.origin();
   if (origin_url.SchemeIs(kChromeUIScheme))
     return true;
 
   // No extra check is needed for isolated file systems.
   if (url.mount_type() == fileapi::kFileSystemTypeIsolated)
     return true;
 
   if (!CanHandleURL(url))
     return false;
 
   std::string extension_id = origin_url.host();
   // Check first to make sure this extension has fileBrowserHander permissions.
   if (!special_storage_policy_->IsFileHandler(extension_id))
     return false;
 
   return file_access_permissions_->HasAccessPermission(extension_id,
                                                        url.virtual_path());
 }
 
-void CrosMountPointProvider::GrantFullAccessToExtension(
+void FileSystemBackend::GrantFullAccessToExtension(
     const std::string& extension_id) {
   DCHECK(special_storage_policy_->IsFileHandler(extension_id));
   if (!special_storage_policy_->IsFileHandler(extension_id))
     return;
 
   std::vector<fileapi::MountPoints::MountPointInfo> files;
   mount_points_->AddMountPointInfosTo(&files);
   system_mount_points_->AddMountPointInfosTo(&files);
 
   for (size_t i = 0; i < files.size(); ++i) {
     file_access_permissions_->GrantAccessPermission(
         extension_id,
         base::FilePath::FromUTF8Unsafe(files[i].name));
   }
 }
 
-void CrosMountPointProvider::GrantFileAccessToExtension(
+void FileSystemBackend::GrantFileAccessToExtension(
     const std::string& extension_id, const base::FilePath& virtual_path) {
   // All we care about here is access from extensions for now.
   DCHECK(special_storage_policy_->IsFileHandler(extension_id));
   if (!special_storage_policy_->IsFileHandler(extension_id))
     return;
 
   std::string id;
   fileapi::FileSystemType type;
   base::FilePath path;
   if (!mount_points_->CrackVirtualPath(virtual_path, &id, &type, &path) &&
       !system_mount_points_->CrackVirtualPath(virtual_path,
                                               &id, &type, &path)) {
     return;
   }
 
   if (type == fileapi::kFileSystemTypeRestrictedNativeLocal) {
     LOG(ERROR) << "Can't grant access for restricted mount point";
     return;
   }
 
   file_access_permissions_->GrantAccessPermission(extension_id, virtual_path);
 }
 
-void CrosMountPointProvider::RevokeAccessForExtension(
+void FileSystemBackend::RevokeAccessForExtension(
       const std::string& extension_id) {
   file_access_permissions_->RevokePermissions(extension_id);
 }
 
-std::vector<base::FilePath> CrosMountPointProvider::GetRootDirectories() const {
+std::vector<base::FilePath> FileSystemBackend::GetRootDirectories() const {
   std::vector<fileapi::MountPoints::MountPointInfo> mount_points;
   mount_points_->AddMountPointInfosTo(&mount_points);
   system_mount_points_->AddMountPointInfosTo(&mount_points);
 
   std::vector<base::FilePath> root_dirs;
   for (size_t i = 0; i < mount_points.size(); ++i)
     root_dirs.push_back(mount_points[i].path);
   return root_dirs;
 }
 
-fileapi::FileSystemFileUtil* CrosMountPointProvider::GetFileUtil(
+fileapi::FileSystemFileUtil* FileSystemBackend::GetFileUtil(
     fileapi::FileSystemType type) {
   DCHECK(type == fileapi::kFileSystemTypeNativeLocal ||
          type == fileapi::kFileSystemTypeRestrictedNativeLocal);
   return local_file_util_->sync_file_util();
 }
 
-fileapi::AsyncFileUtil* CrosMountPointProvider::GetAsyncFileUtil(
+fileapi::AsyncFileUtil* FileSystemBackend::GetAsyncFileUtil(
     fileapi::FileSystemType type) {
   if (type == fileapi::kFileSystemTypeDrive)
     return drive_delegate_->GetAsyncFileUtil(type);
 
   DCHECK(type == fileapi::kFileSystemTypeNativeLocal ||
          type == fileapi::kFileSystemTypeRestrictedNativeLocal);
   return local_file_util_.get();
 }
 
 fileapi::CopyOrMoveFileValidatorFactory*
-CrosMountPointProvider::GetCopyOrMoveFileValidatorFactory(
+FileSystemBackend::GetCopyOrMoveFileValidatorFactory(
     fileapi::FileSystemType type, base::PlatformFileError* error_code) {
   DCHECK(error_code);
   *error_code = base::PLATFORM_FILE_OK;
   return NULL;
 }
 
-fileapi::FileSystemOperation* CrosMountPointProvider::CreateFileSystemOperation(
+fileapi::FileSystemOperation* FileSystemBackend::CreateFileSystemOperation(
     const fileapi::FileSystemURL& url,
     fileapi::FileSystemContext* context,
     base::PlatformFileError* error_code) const {
   DCHECK(url.is_valid());
 
   if (!IsAccessAllowed(url)) {
     *error_code = base::PLATFORM_FILE_ERROR_SECURITY;
     return NULL;
   }
 
   if (url.type() == fileapi::kFileSystemTypeDrive)
     return drive_delegate_->CreateFileSystemOperation(url, context, error_code);
 
   DCHECK(url.type() == fileapi::kFileSystemTypeNativeLocal ||
          url.type() == fileapi::kFileSystemTypeRestrictedNativeLocal);
   scoped_ptr<fileapi::FileSystemOperationContext> operation_context(
       new fileapi::FileSystemOperationContext(context));
   operation_context->set_root_path(GetFileSystemRootPath(url));
   return new fileapi::LocalFileSystemOperation(url, context,
                                                operation_context.Pass());
 }
 
 scoped_ptr<webkit_blob::FileStreamReader>
-CrosMountPointProvider::CreateFileStreamReader(
+FileSystemBackend::CreateFileStreamReader(
     const fileapi::FileSystemURL& url,
     int64 offset,
     const base::Time& expected_modification_time,
     fileapi::FileSystemContext* context) const {
   DCHECK(url.is_valid());
 
   if (!IsAccessAllowed(url))
     return scoped_ptr<webkit_blob::FileStreamReader>();
 
   if (url.type() == fileapi::kFileSystemTypeDrive) {
     return drive_delegate_->CreateFileStreamReader(
         url, offset, expected_modification_time, context);
   }
 
   return scoped_ptr<webkit_blob::FileStreamReader>(
       new fileapi::FileSystemFileStreamReader(
           context, url, offset, expected_modification_time));
 }
 
 scoped_ptr<fileapi::FileStreamWriter>
-CrosMountPointProvider::CreateFileStreamWriter(
+FileSystemBackend::CreateFileStreamWriter(
     const fileapi::FileSystemURL& url,
     int64 offset,
     fileapi::FileSystemContext* context) const {
   DCHECK(url.is_valid());
 
   if (!IsAccessAllowed(url))
     return scoped_ptr<fileapi::FileStreamWriter>();
 
   if (url.type() == fileapi::kFileSystemTypeDrive)
     return drive_delegate_->CreateFileStreamWriter(url, offset, context);
 
   if (url.type() == fileapi::kFileSystemTypeRestrictedNativeLocal)
     return scoped_ptr<fileapi::FileStreamWriter>();
 
   DCHECK(url.type() == fileapi::kFileSystemTypeNativeLocal);
   return scoped_ptr<fileapi::FileStreamWriter>(
       new fileapi::LocalFileStreamWriter(
           context->task_runners()->file_task_runner(), url.path(), offset));
 }
 
-bool CrosMountPointProvider::GetVirtualPath(
+bool FileSystemBackend::GetVirtualPath(
     const base::FilePath& filesystem_path,
     base::FilePath* virtual_path) {
   return mount_points_->GetVirtualPath(filesystem_path, virtual_path) ||
          system_mount_points_->GetVirtualPath(filesystem_path, virtual_path);
 }
 
-base::FilePath CrosMountPointProvider::GetFileSystemRootPath(
+base::FilePath FileSystemBackend::GetFileSystemRootPath(
     const fileapi::FileSystemURL& url) const {
   DCHECK(fileapi::IsolatedContext::IsIsolatedType(url.mount_type()));
   if (!url.is_valid())
     return base::FilePath();
 
   base::FilePath root_path;
   std::string mount_name = url.filesystem_id();
   if (!mount_points_->GetRegisteredPath(mount_name, &root_path) &&
       !system_mount_points_->GetRegisteredPath(mount_name, &root_path)) {
     return base::FilePath();
   }
 
   return root_path.DirName();
 }
 
 }  // namespace chromeos