1 // Copyright 2019 The Chromium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "components/metrics/android_metrics_provider.h" 6 7 #include "base/metrics/histogram_macros.h" 8 #include "base/system/sys_info.h" 9 10 namespace metrics { 11 AndroidMetricsProvider()12AndroidMetricsProvider::AndroidMetricsProvider() {} 13 ~AndroidMetricsProvider()14AndroidMetricsProvider::~AndroidMetricsProvider() {} 15 ProvideHistograms()16bool AndroidMetricsProvider::ProvideHistograms() { 17 // Equivalent to UMA_HISTOGRAM_BOOLEAN with the stability flag set. 18 UMA_STABILITY_HISTOGRAM_ENUMERATION( 19 "MemoryAndroid.LowRamDevice", base::SysInfo::IsLowEndDevice() ? 1 : 0, 2); 20 21 return true; 22 } 23 ProvidePreviousSessionData(metrics::ChromeUserMetricsExtension * uma_proto)24void AndroidMetricsProvider::ProvidePreviousSessionData( 25 metrics::ChromeUserMetricsExtension* uma_proto) { 26 // The low-ram device status is unlikely to change between browser restarts. 27 // Hence, it's safe and useful to attach this status to a previous session 28 // log. 29 ProvideHistograms(); 30 } 31 } // namespace metrics 32