Implement IsNonNativeLocalPathDirectory for supporting non-local non-Drive directory access in apps.

chrome/browser/chromeos/drive/file_system_util.cc

Index: chrome/browser/chromeos/drive/file_system_util.cc
diff --git a/chrome/browser/chromeos/drive/file_system_util.cc b/chrome/browser/chromeos/drive/file_system_util.cc
index 5cba03ba7c2dfce64029474087a2b2f2f624ab91..3946c0c7657b361f6e5f1df02e71d8f9f2473871 100644
--- a/chrome/browser/chromeos/drive/file_system_util.cc
+++ b/chrome/browser/chromeos/drive/file_system_util.cc
@@ -104,15 +104,6 @@ DriveIntegrationService* GetIntegrationServiceByProfile(Profile* profile) {
   return service;
 }
 
-void CheckDirectoryExistsAfterGetResourceEntry(
-    const FileOperationCallback& callback,
-    FileError error,
-    scoped_ptr<ResourceEntry> entry) {
-  if (error == FILE_ERROR_OK && !entry->file_info().is_directory())
-    error = FILE_ERROR_NOT_A_DIRECTORY;
-  callback.Run(error);
-}
-
 }  // namespace
 
 const base::FilePath& GetDriveGrandRootPath() {
@@ -348,20 +339,6 @@ void EnsureDirectoryExists(Profile* profile,
   }
 }
 
-void CheckDirectoryExists(Profile* profile,
-                          const base::FilePath& directory,
-                          const FileOperationCallback& callback) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  DCHECK(!callback.is_null());
-
-  FileSystemInterface* file_system = GetFileSystemByProfile(profile);
-  DCHECK(file_system);
-
-  file_system->GetResourceEntry(
-      ExtractDrivePath(directory),
-      base::Bind(&CheckDirectoryExistsAfterGetResourceEntry, callback));
-}
-
 void EmptyFileOperationCallback(FileError error) {
 }