Use ExtractDrivePath(path()) instead of virtual_path() for getting Drive path.

chrome/browser/chromeos/drive/drive_task_executor.cc

Index: chrome/browser/chromeos/drive/drive_task_executor.cc
diff --git a/chrome/browser/chromeos/drive/drive_task_executor.cc b/chrome/browser/chromeos/drive/drive_task_executor.cc
index d0871d8460b157dbef9968a4cfd6d065edb470e0..17014b369a9b2e96538e569cbce48287b1793983 100644
--- a/chrome/browser/chromeos/drive/drive_task_executor.cc
+++ b/chrome/browser/chromeos/drive/drive_task_executor.cc
@@ -49,9 +49,10 @@ bool DriveTaskExecutor::ExecuteAndNotify(
   std::vector<base::FilePath> raw_paths;
   for (std::vector<FileSystemURL>::const_iterator url = file_urls.begin();
        url != file_urls.end(); ++url) {
-    if (!url->is_valid() || url->type() != fileapi::kFileSystemTypeDrive)
+    base::FilePath path = util::ExtractDrivePathFromFileSystemUrl(*url);
+    if (path.empty())
       return false;
-    raw_paths.push_back(url->virtual_path());
+    raw_paths.push_back(path);
   }
 
   DriveSystemService* system_service =