// Copyright 2013 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.
package org.chromium.chrome.browser;
import org.chromium.base.CalledByNative;
/**
* Utilities to support startup metrics - Android version.
*/
public class UmaUtils {
private static long sApplicationStartWallClockMs;
/**
* Record the time at which the activity started. This should be called asap after
* the start of the activity's onCreate function.
*/
public static void recordMainEntryPointTime() {
// We can't simply pass this down through a JNI call, since the JNI for chrome
// isn't initialized until we start the native content browser component, and we
// then need the start time in the C++ side before we return to Java. As such we
// save it in a static that the C++ can fetch once it has initialized the JNI.
sApplicationStartWallClockMs = System.currentTimeMillis();
}
@CalledByNative
private static long getMainEntryPointTime() {
return sApplicationStartWallClockMs;
}
}