Move tools/autoroller to tools-webrtc/ + rename script

tools/autoroller/unittests/testdata/DEPS.chromium.old

Index: tools/autoroller/unittests/testdata/DEPS.chromium.old
diff --git a/tools/autoroller/unittests/testdata/DEPS.chromium.old b/tools/autoroller/unittests/testdata/DEPS.chromium.old
deleted file mode 100644
index dd6ddaec8136971c88b9410f71076b755038cbbd..0000000000000000000000000000000000000000
--- a/tools/autoroller/unittests/testdata/DEPS.chromium.old
+++ /dev/null
@@ -1,13 +0,0 @@
-# DEPS file for unit tests.
-
-vars = {
-  'chromium_git': 'https://chromium.googlesource.com',
-
-  # This is and older revision than DEPS.chromium.new file.
-  'buildtools_revision': '64e38f0cebdde27aa0cfb405f330063582f9ac76',
-}
-
-deps = {
-  'src/buildtools':
-    Var('chromium_git') + '/chromium/buildtools.git' + '@' +  Var('buildtools_revision'),
-}