Add CreateFileSystemOperation() method to FileSystemContext

webkit/fileapi/file_system_context.cc

 // Copyright (c) 2012 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 "webkit/fileapi/file_system_context.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/message_loop_proxy.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebFileSystem.h"
 #include "webkit/fileapi/file_system_callback_dispatcher.h"
 #include "webkit/fileapi/file_system_file_util.h"
+#include "webkit/fileapi/file_system_operation_interface.h"
 #include "webkit/fileapi/file_system_options.h"
 #include "webkit/fileapi/file_system_quota_client.h"
 #include "webkit/fileapi/file_system_util.h"
 #include "webkit/fileapi/sandbox_mount_point_provider.h"
 #include "webkit/quota/quota_manager.h"
 #include "webkit/quota/special_storage_policy.h"
 
 #if defined(OS_CHROMEOS)
 #include "webkit/chromeos/fileapi/cros_mount_point_provider.h"
 #endif
@@ skipping 128 matching lines @@
   }
   delete this;
 }
 
 void FileSystemContext::OpenFileSystem(
     const GURL& origin_url,
     FileSystemType type,
     bool create,
     scoped_ptr<FileSystemCallbackDispatcher> dispatcher) {
   DCHECK(dispatcher.get());
+
   FileSystemMountPointProvider* mount_point_provider =
       GetMountPointProvider(type);
   if (!mount_point_provider) {
     dispatcher->DidFail(base::PLATFORM_FILE_ERROR_SECURITY);
     return;
   }
 
   GURL root_url = GetFileSystemRootURI(origin_url, type);
   std::string name = GetFileSystemName(origin_url, type);
 
   mount_point_provider->ValidateFileSystemRoot(
       origin_url, type, create,
       base::Bind(&DidOpenFileSystem,
                  base::Passed(&dispatcher), root_url, name));
 }
 
+FileSystemOperationInterface* FileSystemContext::CreateFileSystemOperation(
+    const GURL& url,
+    scoped_ptr<FileSystemCallbackDispatcher> dispatcher,
+    base::MessageLoopProxy* file_proxy) {
+  GURL origin_url;
+  FileSystemType file_system_type = kFileSystemTypeUnknown;
+  FilePath file_path;
+  if (!CrackFileSystemURL(url, &origin_url, &file_system_type, &file_path))
+    return NULL;
+  FileSystemMountPointProvider* mount_point_provider =
+      GetMountPointProvider(file_system_type);
+  if (!mount_point_provider)
+    return NULL;
+  return mount_point_provider->CreateFileSystemOperation(
+      origin_url, file_system_type, file_path,
+      dispatcher.Pass(), file_proxy, this);
+}
+
 }  // namespace fileapi
 
 COMPILE_ASSERT(int(WebKit::WebFileSystem::TypeTemporary) == \
                int(fileapi::kFileSystemTypeTemporary), mismatching_enums);
 COMPILE_ASSERT(int(WebKit::WebFileSystem::TypePersistent) == \
                int(fileapi::kFileSystemTypePersistent), mismatching_enums);
 COMPILE_ASSERT(int(WebKit::WebFileSystem::TypeExternal) == \
                int(fileapi::kFileSystemTypeExternal), mismatching_enums);