Histograms - Support histograms for Plugins, GPU

chrome/common/metrics/metrics_service_base.cc

 // Copyright (c) 2012 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 "chrome/common/metrics/metrics_service_base.h"
 
 #include <cstdlib>
 
 #include "chrome/common/metrics/metrics_log_base.h"
 
 using base::Histogram;
 
-MetricsServiceBase::MetricsServiceBase() {
+MetricsServiceBase::MetricsServiceBase()
+    : ALLOW_THIS_IN_INITIALIZER_LIST(histogram_snapshot_manager_(this)) {
 }
 
 MetricsServiceBase::~MetricsServiceBase() {
 }
 
 // static
 const char MetricsServiceBase::kServerUrlXml[] =
     "https://clients4.google.com/firefox/metrics/collect";
 const char MetricsServiceBase::kServerUrlProto[] =
     "https://clients4.google.com/uma/v2";
 
 // static
 const char MetricsServiceBase::kMimeTypeXml[] =
     "application/vnd.mozilla.metrics.bz2";
 // static
 const char MetricsServiceBase::kMimeTypeProto[] =
     "application/vnd.chrome.uma";
 
 void MetricsServiceBase::RecordCurrentHistograms() {
   DCHECK(log_manager_.current_log());
-  TransmitAllHistograms(base::Histogram::kNoFlags, true);
+  histogram_snapshot_manager_.PrepareDeltas(base::Histogram::kNoFlags, true);
 }
 
-void MetricsServiceBase::TransmitHistogramDelta(
+void MetricsServiceBase::RecordDelta(
     const base::Histogram& histogram,
     const base::Histogram::SampleSet& snapshot) {
   log_manager_.current_log()->RecordHistogramDelta(histogram, snapshot);
 }
 
 void MetricsServiceBase::InconsistencyDetected(int problem) {
   UMA_HISTOGRAM_ENUMERATION("Histogram.InconsistenciesBrowser",
                             problem, Histogram::NEVER_EXCEEDED_VALUE);
 }
 
 void MetricsServiceBase::UniqueInconsistencyDetected(int problem) {
   UMA_HISTOGRAM_ENUMERATION("Histogram.InconsistenciesBrowserUnique",
                             problem, Histogram::NEVER_EXCEEDED_VALUE);
 }
 
 void MetricsServiceBase::SnapshotProblemResolved(int amount) {
   UMA_HISTOGRAM_COUNTS("Histogram.InconsistentSnapshotBrowser",
                        std::abs(amount));
 }