naiveproxy/base/android/animation_frame_time_histogram.cc
2018-08-11 05:35:24 +00:00

27 lines
928 B
C++

// Copyright 2015 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 "base/android/jni_string.h"
#include "base/metrics/histogram_macros.h"
#include "jni/AnimationFrameTimeHistogram_jni.h"
using base::android::JavaParamRef;
// static
void JNI_AnimationFrameTimeHistogram_SaveHistogram(
JNIEnv* env,
const JavaParamRef<jobject>& jcaller,
const JavaParamRef<jstring>& j_histogram_name,
const JavaParamRef<jlongArray>& j_frame_times_ms,
jint j_count) {
jlong *frame_times_ms = env->GetLongArrayElements(j_frame_times_ms, NULL);
std::string histogram_name = base::android::ConvertJavaStringToUTF8(
env, j_histogram_name);
for (int i = 0; i < j_count; ++i) {
UMA_HISTOGRAM_TIMES(histogram_name.c_str(),
base::TimeDelta::FromMilliseconds(frame_times_ms[i]));
}
}