Remove the temporary scaffolding stubs.

chrome/browser/jankometer_mac.cc

Index: chrome/browser/jankometer_mac.cc
diff --git a/chrome/browser/jankometer_mac.cc b/chrome/browser/jankometer_mac.cc
new file mode 100644
index 0000000000000000000000000000000000000000..cf8586966a162fbdd53d0db18b8bd6a0bd6983bd
--- /dev/null
+++ b/chrome/browser/jankometer_mac.cc
@@ -0,0 +1,13 @@
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/jankometer.h"
+
+void InstallJankometer(const CommandLine& parsed_command_line) {
+  // TODO(port): Implement jankometer, http://crbug.com/8077
+}
+
+void UninstallJankometer() {
+  // TODO(port): Implement jankometer, http://crbug.com/8077
+}