Do not replace up-to-date System Flash with Component Flash.

base/files/file_util.h

Index: base/files/file_util.h
diff --git a/base/files/file_util.h b/base/files/file_util.h
index 81a60d794c0559ce9e203a9410e87f1eed9fa1f7..77a87e7dade7df8db204dfd33aaafe7209c8a06b 100644
--- a/base/files/file_util.h
+++ b/base/files/file_util.h
@@ -294,10 +294,6 @@ BASE_EXPORT bool DevicePathToDriveLetterPath(const FilePath& device_path,
 // be resolved with this function.
 BASE_EXPORT bool NormalizeToNativeFilePath(const FilePath& path,
                                            FilePath* nt_path);
-
-// Given an existing file in |path|, returns whether this file is on a network
-// drive or not. If |path| does not exist, this function returns false.
-BASE_EXPORT bool IsOnNetworkDrive(const base::FilePath& path);
 #endif
 
 // This function will return if the given file is a symlink or not.