Report expected task queueing time via UMA

components/scheduler/base/test_count_uses_time_source.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 "components/scheduler/base/test_count_uses_time_source.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace scheduler {
+
+TestCountUsesTimeSource::TestCountUsesTimeSource() : now_calls_count_(0) {}
+
+TestCountUsesTimeSource::~TestCountUsesTimeSource() {
+}
+
+base::TimeTicks TestCountUsesTimeSource::NowTicks() {
+  now_calls_count_++;
+  // Don't return 0, as it triggers some assertions.
+  return base::TimeTicks() + base::TimeDelta::FromSeconds(1);
+}
+
+}  // namespace scheduler