Move absolute path conversion back to the FILE thread.

chrome/browser/extensions/api/file_system/file_system_api.h

Index: chrome/browser/extensions/api/file_system/file_system_api.h
diff --git a/chrome/browser/extensions/api/file_system/file_system_api.h b/chrome/browser/extensions/api/file_system/file_system_api.h
index a2f9e4dbd89d98031aacd2016830aadd73eb5d70..187f381e4a9ad90ebeb2624ae234794053d80ff9 100644
--- a/chrome/browser/extensions/api/file_system/file_system_api.h
+++ b/chrome/browser/extensions/api/file_system/file_system_api.h
@@ -159,13 +159,13 @@ class FileSystemChooseEntryFunction : public FileSystemEntryFunction {
   void FilesSelected(const std::vector<base::FilePath>& path);
   void FileSelectionCanceled();
 
-  // Check if |check_path|, the canonicalized form of the chosen directory
-  // |paths|, is or is an ancestor of a sensitive directory. If so, show a
-  // dialog to confirm that the user wants to open the directory.
-  // Calls OnDirectoryAccessConfirmed if the directory isn't sensitive or the
-  // user chooses to open it. Otherwise, calls FileSelectionCanceled.
+  // Check if the chosen directory is or is an ancestor of a sensitive
+  // directory. If so, show a dialog to confirm that the user wants to open the
+  // directory. Calls OnDirectoryAccessConfirmed if the directory isn't
+  // sensitive or the user chooses to open it. Otherwise, calls
+  // FileSelectionCanceled.
   void ConfirmDirectoryAccessOnFileThread(
-      const base::FilePath& check_path,
+      bool non_native_path,
       const std::vector<base::FilePath>& paths,
       content::WebContents* web_contents);
   void OnDirectoryAccessConfirmed(const std::vector<base::FilePath>& paths);