Report utility process JS memory in task manager.

content/browser/process_resource_usage_impl.cc

+// 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 "content/browser/process_resource_usage_impl.h"
+
+#include "base/bind.h"
+#include "base/logging.h"
+
+namespace content {
+
+// static
+scoped_ptr<ProcessResourceUsage> ProcessResourceUsage::Create(
+    ResourceUsageReporterPtr service) {
+  return make_scoped_ptr(new ProcessResourceUsageImpl(service.Pass()));
+}
+
+ProcessResourceUsageImpl::ProcessResourceUsageImpl(
+    ResourceUsageReporterPtr service)
+    : service_(service.Pass()),
+      update_in_progress_(false) {
+}
+
+ProcessResourceUsageImpl::~ProcessResourceUsageImpl() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+}
+
+void ProcessResourceUsageImpl::Refresh() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  if (!update_in_progress_ && service_) {
+    update_in_progress_ = true;
+    service_->GetUsageData(
+        base::Bind(&ProcessResourceUsageImpl::OnRefreshDone,
+                   base::Unretained(this)));
+  }
+}
+
+void ProcessResourceUsageImpl::OnRefreshDone(ResourceUsageDataPtr data) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  update_in_progress_ = false;
+  stats_ = data.Pass();
+}
+
+bool ProcessResourceUsageImpl::ReportsV8MemoryStats() const {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  if (stats_)
+    return stats_->reports_v8_stats;
+  return false;
+}
+
+size_t ProcessResourceUsageImpl::GetV8MemoryAllocated() const {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  if (stats_ && stats_->reports_v8_stats)
+    return stats_->v8_memory_allocated;
+  return 0;
+}
+
+size_t ProcessResourceUsageImpl::GetV8MemoryUsed() const {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  if (stats_ && stats_->reports_v8_stats)
+    return stats_->v8_memory_used;
+  return 0;
+}
+
+}  // namespace content