Replaced TestNowSource with SimpleTestTickClock.

cc/test/test_now_source.cc

-// Copyright 2014 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 <limits>
-#include <string>
-
-#include "cc/test/test_now_source.h"
-
-namespace cc {
-
-// TestNowSource::Constructors
-scoped_refptr<TestNowSource> TestNowSource::Create() {
-  return make_scoped_refptr(new TestNowSource());
-}
-
-scoped_refptr<TestNowSource> TestNowSource::Create(base::TimeTicks initial) {
-  return make_scoped_refptr(new TestNowSource(initial));
-}
-
-scoped_refptr<TestNowSource> TestNowSource::Create(int64_t initial) {
-  return make_scoped_refptr(new TestNowSource(initial));
-}
-
-TestNowSource::TestNowSource()
-    : initial_(base::TimeTicks::FromInternalValue(10000)),
-      now_(),
-      num_now_calls_(0) {
-  Reset();
-}
-
-TestNowSource::TestNowSource(base::TimeTicks initial)
-    : initial_(initial), now_(), num_now_calls_(0) {
-  Reset();
-}
-
-TestNowSource::TestNowSource(int64_t initial)
-    : initial_(base::TimeTicks::FromInternalValue(initial)),
-      now_(),
-      num_now_calls_(0) {
-  Reset();
-}
-
-TestNowSource::~TestNowSource() {
-}
-
-// TestNowSource actual functionality
-void TestNowSource::Reset() {
-  TRACE_EVENT_INSTANT2("cc",
-                       "TestNowSource::Reset",
-                       TRACE_EVENT_SCOPE_THREAD,
-                       "previous",
-                       now_,
-                       "initial",
-                       initial_);
-  now_ = initial_;
-}
-
-base::TimeTicks TestNowSource::Now() const {
-  num_now_calls_++;
-  return now_;
-}
-
-void TestNowSource::SetNow(base::TimeTicks time) {
-  TRACE_EVENT_INSTANT2("cc",
-                       "TestNowSource::SetNow",
-                       TRACE_EVENT_SCOPE_THREAD,
-                       "previous",
-                       now_,
-                       "new",
-                       time);
-  DCHECK(time >= now_);  // Time should always go forward.
-  now_ = time;
-}
-
-void TestNowSource::AdvanceNow(base::TimeDelta period) {
-  TRACE_EVENT_INSTANT2("cc",
-                       "TestNowSource::AdvanceNow",
-                       TRACE_EVENT_SCOPE_THREAD,
-                       "previous",
-                       now_,
-                       "by",
-                       period.ToInternalValue());
-  DCHECK(now_ != kAbsoluteMaxNow);
-  DCHECK(period >= base::TimeDelta());  // Time should always go forward.
-  now_ += period;
-}
-
-const base::TimeTicks TestNowSource::kAbsoluteMaxNow =
-    base::TimeTicks::FromInternalValue(std::numeric_limits<int64_t>::max());
-
-// TestNowSource::Convenience functions
-void TestNowSource::AdvanceNowMicroseconds(int64_t period_in_microseconds) {
-  AdvanceNow(base::TimeDelta::FromMicroseconds(period_in_microseconds));
-}
-void TestNowSource::SetNowMicroseconds(int64_t time_in_microseconds) {
-  SetNow(base::TimeTicks::FromInternalValue(time_in_microseconds));
-}
-
-// TestNowSource::Tracing functions
-void TestNowSource::AsValueInto(base::trace_event::TracedValue* state) const {
-  state->SetInteger("now_in_microseconds", now_.ToInternalValue());
-}
-
-scoped_refptr<base::trace_event::ConvertableToTraceFormat>
-TestNowSource::AsValue() const {
-  scoped_refptr<base::trace_event::TracedValue> state =
-      new base::trace_event::TracedValue();
-  AsValueInto(state.get());
-  return state;
-}
-
-// TestNowSource::Pretty printing functions
-std::string TestNowSource::ToString() const {
-  std::string output("TestNowSource(");
-  AsValue()->AppendAsTraceFormat(&output);
-  output += ")";
-  return output;
-}
-
-::std::ostream& operator<<(::std::ostream& os,
-                           const scoped_refptr<TestNowSource>& src) {
-  os << src->ToString();
-  return os;
-}
-void PrintTo(const scoped_refptr<TestNowSource>& src, ::std::ostream* os) {
-  *os << src;
-}
-
-}  // namespace cc