Add a basic .gitignore file for the autotest repo.
Review URL: http://codereview.chromium.org/515014
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a138169
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,17 @@
+#
+# NOTE! Please use 'git ls-files -i --exclude-standard'
+# command after changing this file, to see if there are
+# any tracked files which get ignored after the change.
+#
+
+# Standard ignores
+*.[ao]
+*.la
+*.lo
+*.pyc
+*.so
+*~
+
+# Anything created as a result of running a test
+results.*/
+tmp/