auto import from //depot/cupcake/@135843
diff --git a/tools/idegen/src/Stopwatch.java b/tools/idegen/src/Stopwatch.java
new file mode 100644
index 0000000..4bd2ae8
--- /dev/null
+++ b/tools/idegen/src/Stopwatch.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Measures passed time.
+ */
+class Stopwatch {
+
+ long last = System.currentTimeMillis();
+
+ void reset(String label) {
+ long now = System.currentTimeMillis();
+ Log.info(label + ": " + (now - last) + "ms");
+ last = now;
+ }
+}
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