Support removeRecursively and new copy/move behaviors for FileSystem API

webkit/fileapi/file_system_operation.cc

Index: webkit/fileapi/file_system_operation.cc
diff --git a/webkit/fileapi/file_system_operation.cc b/webkit/fileapi/file_system_operation.cc
index 140ade42c73dbd1a8b714d4262c90d7cfb827e7f..fcb65c3db9c58a8b93a345e87a2cf22772fbdfbe 100644
--- a/webkit/fileapi/file_system_operation.cc
+++ b/webkit/fileapi/file_system_operation.cc
@@ -117,14 +117,15 @@ void FileSystemOperation::ReadDirectory(const FilePath& path) {
           &FileSystemOperation::DidReadDirectory));
 }
 
-void FileSystemOperation::Remove(const FilePath& path) {
+void FileSystemOperation::Remove(const FilePath& path, bool recursive) {
 #ifndef NDEBUG
   DCHECK(!operation_pending_);
   operation_pending_ = true;
 #endif
 
-  base::FileUtilProxy::Delete(proxy_, path, callback_factory_.NewCallback(
-      &FileSystemOperation::DidFinishFileOperation));
+  base::FileUtilProxy::Delete(proxy_, path, recursive,
+      callback_factory_.NewCallback(
+          &FileSystemOperation::DidFinishFileOperation));
 }
 
 void FileSystemOperation::Write(