Report expected task queueing time via UMA

components/scheduler/base/test_always_fail_time_source.cc

Index: components/scheduler/base/test_always_fail_time_source.cc
diff --git a/components/scheduler/base/test_always_fail_time_source.cc b/components/scheduler/base/test_always_fail_time_source.cc
deleted file mode 100644
index 254298453f9d51f22d7179d83276e13cfb3b0b41..0000000000000000000000000000000000000000
--- a/components/scheduler/base/test_always_fail_time_source.cc
+++ /dev/null
@@ -1,21 +0,0 @@
-// 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_always_fail_time_source.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace scheduler {
-
-TestAlwaysFailTimeSource::TestAlwaysFailTimeSource() {
-}
-
-TestAlwaysFailTimeSource::~TestAlwaysFailTimeSource() {
-}
-
-base::TimeTicks TestAlwaysFailTimeSource::NowTicks() {
-  ADD_FAILURE() << "NowTicks() was called!";
-  return base::TimeTicks();
-}
-
-}  // namespace scheduler