Add file permissions to filesystem_mock

third_party/WebKit/Tools/Scripts/webkitpy/common/system/filesystem.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/common/system/filesystem.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/common/system/filesystem.py b/third_party/WebKit/Tools/Scripts/webkitpy/common/system/filesystem.py
index 65a9bd8a0578494f4319768dc7550f6732110e33..1060f1d04c2a8e4a19002bc975506930a4287388 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/common/system/filesystem.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/common/system/filesystem.py
@@ -28,6 +28,7 @@
 
 """Wrapper object for the file system / source tree."""
 
+import stat
 import codecs
 import errno
 import exceptions
@@ -274,3 +275,9 @@ class FileSystem(object):
     def splitext(self, path):
         """Return (dirname + os.sep + basename, '.' + ext)"""
         return os.path.splitext(path)
+
+    def make_executable(self, file_path):
+        os.chmod(file_path, stat.S_IXUSR)

[qyearsley, 2016/06/15 21:54:25]

Not sure if it makes a difference, but currently executable files in the
chromium repo on my workstation appear to have permissions -rwxr-x--- (mode 750)

So perhaps we may want to use:

  os.chmod(file_path, stat.S_IXUSR | stat.S_IXGRP)

+
+    def is_executable(self, file_path):
+        return os.access(file_path, os.X_OK)