auto import from //depot/cupcake/@135843
diff --git a/include/utils/StopWatch.h b/include/utils/StopWatch.h
new file mode 100644
index 0000000..cc0bebc
--- /dev/null
+++ b/include/utils/StopWatch.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2005 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.
+ */
+
+#ifndef ANDROID_STOPWATCH_H
+#define ANDROID_STOPWATCH_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Timers.h>
+
+// ---------------------------------------------------------------------------
+
+namespace android {
+
+class StopWatch
+{
+public:
+ StopWatch( const char *name,
+ int clock = SYSTEM_TIME_MONOTONIC,
+ uint32_t flags = 0);
+ ~StopWatch();
+
+ const char* name() const;
+ nsecs_t lap();
+ nsecs_t elapsedTime() const;
+
+private:
+ const char* mName;
+ int mClock;
+ uint32_t mFlags;
+
+ struct lap_t {
+ nsecs_t soFar;
+ nsecs_t thisLap;
+ };
+
+ nsecs_t mStartTime;
+ lap_t mLaps[8];
+ int mNumLaps;
+};
+
+
+}; // namespace android
+
+
+// ---------------------------------------------------------------------------
+
+#endif // ANDROID_STOPWATCH_H