1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // nacl_histogram provides an enum and defines a macro that uses definitions 6 // from histogram.h. Note that a histogram is an object that aggregates 7 // statistics, and can summarize them in various forms, including ASCII 8 // graphical, HTML, and numerically. 9 // nacl_histogram information is used to compare how many times a native 10 // client module has been loaded, compared to the number of chrome starts 11 // and number of new tabs created. 12 13 14 #include "base/metrics/histogram.h" 15 #include "base/metrics/nacl_histogram.h" 16 17 // To log histogram data about NaCl.Startups, call this function with 18 // a NaClHistogramValue passed in as |hvalue| UmaNaclHistogramEnumeration(NaClHistogramValue histogram_value)19void UmaNaclHistogramEnumeration(NaClHistogramValue histogram_value) { 20 UMA_HISTOGRAM_ENUMERATION("NaCl.Startups", histogram_value, 21 NACL_MAX_HISTOGRAM); 22 } 23 24