Add CreateFileSystemOperation() method to FileSystemContext

webkit/fileapi/file_system_context.cc

Index: webkit/fileapi/file_system_context.cc
diff --git a/webkit/fileapi/file_system_context.cc b/webkit/fileapi/file_system_context.cc
index b3d7d7e0658b3577809574b14d8ed6d7d0910c9c..b49740557d32bcf32382735250eaae57baa0f014 100644
--- a/webkit/fileapi/file_system_context.cc
+++ b/webkit/fileapi/file_system_context.cc
@@ -11,6 +11,7 @@
 #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"
@@ -172,6 +173,23 @@ void FileSystemContext::OpenFileSystem(
                  base::Owned(dispatcher), root_url, name));
 }
 
+FileSystemOperationInterface* FileSystemContext::CreateFileSystemOperation(
+    const GURL& url,
+    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(
+      url, dispatcher, file_proxy, this);
+}
+
 }  // namespace fileapi
 
 COMPILE_ASSERT(int(WebKit::WebFileSystem::TypeTemporary) == \