Revert "Delete CC."

cc/test/scheduler_test_common.h

Index: cc/test/scheduler_test_common.h
diff --git a/cc/test/scheduler_test_common.h b/cc/test/scheduler_test_common.h
new file mode 100644
index 0000000000000000000000000000000000000000..763ccc8351d761e5d546b961cbfa29d17f424e37
--- /dev/null
+++ b/cc/test/scheduler_test_common.h
@@ -0,0 +1,218 @@
+// Copyright 2011 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.
+
+#ifndef CC_TEST_SCHEDULER_TEST_COMMON_H_
+#define CC_TEST_SCHEDULER_TEST_COMMON_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/time/time.h"
+#include "cc/scheduler/delay_based_time_source.h"
+#include "cc/scheduler/scheduler.h"
+#include "cc/test/ordered_simple_task_runner.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace cc {
+
+class FakeTimeSourceClient : public TimeSourceClient {
+ public:
+  FakeTimeSourceClient() : tick_called_(false) {}
+  void Reset() { tick_called_ = false; }
+  bool TickCalled() const { return tick_called_; }
+
+  // TimeSourceClient implementation.
+  void OnTimerTick() override;
+
+ protected:
+  bool tick_called_;
+};
+
+class FakeDelayBasedTimeSource : public DelayBasedTimeSource {
+ public:
+  static scoped_refptr<FakeDelayBasedTimeSource> Create(
+      base::TimeDelta interval, base::SingleThreadTaskRunner* task_runner) {
+    return make_scoped_refptr(new FakeDelayBasedTimeSource(interval,
+                                                           task_runner));
+  }
+
+  void SetNow(base::TimeTicks time) { now_ = time; }
+  base::TimeTicks Now() const override;
+
+ protected:
+  FakeDelayBasedTimeSource(base::TimeDelta interval,
+                           base::SingleThreadTaskRunner* task_runner)
+      : DelayBasedTimeSource(interval, task_runner) {}
+  ~FakeDelayBasedTimeSource() override {}
+
+  base::TimeTicks now_;
+};
+
+class TestDelayBasedTimeSource : public DelayBasedTimeSource {
+ public:
+  static scoped_refptr<TestDelayBasedTimeSource> Create(
+      scoped_refptr<TestNowSource> now_src,
+      base::TimeDelta interval,
+      OrderedSimpleTaskRunner* task_runner) {
+    return make_scoped_refptr(
+        new TestDelayBasedTimeSource(now_src, interval, task_runner));
+  }
+
+ protected:
+  TestDelayBasedTimeSource(scoped_refptr<TestNowSource> now_src,
+                           base::TimeDelta interval,
+                           OrderedSimpleTaskRunner* task_runner);
+
+  // Overridden from DelayBasedTimeSource
+  ~TestDelayBasedTimeSource() override;
+  base::TimeTicks Now() const override;
+  std::string TypeString() const override;
+
+  scoped_refptr<TestNowSource> now_src_;
+};
+
+struct FakeBeginFrameSource : public BeginFrameSourceMixIn {
+  bool remaining_frames_ = false;
+
+  BeginFrameObserver* GetObserver() { return observer_; }
+
+  BeginFrameArgs TestLastUsedBeginFrameArgs() {
+    if (observer_) {
+      return observer_->LastUsedBeginFrameArgs();
+    }
+    return BeginFrameArgs();
+  }
+  void TestOnBeginFrame(const BeginFrameArgs& args) {
+    return CallOnBeginFrame(args);
+  }
+
+  // BeginFrameSource
+  void DidFinishFrame(size_t remaining_frames) override;
+  void AsValueInto(base::trace_event::TracedValue* dict) const override;
+
+  ~FakeBeginFrameSource() override {}
+};
+
+class TestBackToBackBeginFrameSource : public BackToBackBeginFrameSource {
+ public:
+  ~TestBackToBackBeginFrameSource() override;
+
+  static scoped_ptr<TestBackToBackBeginFrameSource> Create(
+      scoped_refptr<TestNowSource> now_src,
+      base::SingleThreadTaskRunner* task_runner) {
+    return make_scoped_ptr(
+        new TestBackToBackBeginFrameSource(now_src, task_runner));
+  }
+
+ protected:
+  TestBackToBackBeginFrameSource(scoped_refptr<TestNowSource> now_src,
+                                 base::SingleThreadTaskRunner* task_runner);
+
+  base::TimeTicks Now() override;
+
+  scoped_refptr<TestNowSource> now_src_;
+};
+
+class TestSyntheticBeginFrameSource : public SyntheticBeginFrameSource {
+ public:
+  ~TestSyntheticBeginFrameSource() override;
+
+  static scoped_ptr<TestSyntheticBeginFrameSource> Create(
+      scoped_refptr<TestNowSource> now_src,
+      OrderedSimpleTaskRunner* task_runner,
+      base::TimeDelta initial_interval) {
+    return make_scoped_ptr(
+        new TestSyntheticBeginFrameSource(TestDelayBasedTimeSource::Create(
+            now_src, initial_interval, task_runner)));
+  }
+
+ protected:
+  TestSyntheticBeginFrameSource(
+      scoped_refptr<DelayBasedTimeSource> time_source);
+};
+
+class TestScheduler;
+class TestSchedulerFrameSourcesConstructor
+    : public SchedulerFrameSourcesConstructor {
+ public:
+  ~TestSchedulerFrameSourcesConstructor() override;
+
+ protected:
+  BeginFrameSource* ConstructPrimaryFrameSource(Scheduler* scheduler) override;
+  BeginFrameSource* ConstructBackgroundFrameSource(
+      Scheduler* scheduler) override;
+  BeginFrameSource* ConstructUnthrottledFrameSource(
+      Scheduler* scheduler) override;
+
+  OrderedSimpleTaskRunner* test_task_runner_;
+  TestNowSource* now_src_;
+
+ protected:
+  explicit TestSchedulerFrameSourcesConstructor(
+      OrderedSimpleTaskRunner* test_task_runner,
+      TestNowSource* now_src);
+  friend class TestScheduler;
+};
+
+class TestScheduler : public Scheduler {
+ public:
+  static scoped_ptr<TestScheduler> Create(
+      scoped_refptr<TestNowSource> now_src,
+      SchedulerClient* client,
+      const SchedulerSettings& scheduler_settings,
+      int layer_tree_host_id,
+      const scoped_refptr<OrderedSimpleTaskRunner>& task_runner,
+      scoped_ptr<BeginFrameSource> external_begin_frame_source) {
+    TestSchedulerFrameSourcesConstructor frame_sources_constructor(
+        task_runner.get(), now_src.get());
+    return make_scoped_ptr(new TestScheduler(
+                                   now_src,
+                                   client,
+                                   scheduler_settings,
+                                   layer_tree_host_id,
+                                   task_runner,
+                                   &frame_sources_constructor,
+                                   external_begin_frame_source.Pass()));
+  }
+
+  // Extra test helper functionality
+  bool IsBeginRetroFrameArgsEmpty() const {
+    return begin_retro_frame_args_.empty();
+  }
+
+  bool CanStart() const { return state_machine_.CanStartForTesting(); }
+
+  BeginFrameSource& frame_source() { return *frame_source_; }
+  bool FrameProductionThrottled() { return throttle_frame_production_; }
+
+  ~TestScheduler() override;
+
+  void NotifyReadyToCommitThenActivateIfNeeded() {
+    NotifyReadyToCommit();
+    if (settings_.impl_side_painting) {
+      NotifyReadyToActivate();
+    }
+  }
+
+ protected:
+  // Overridden from Scheduler.
+  base::TimeTicks Now() const override;
+
+ private:
+  TestScheduler(
+      scoped_refptr<TestNowSource> now_src,
+      SchedulerClient* client,
+      const SchedulerSettings& scheduler_settings,
+      int layer_tree_host_id,
+      const scoped_refptr<OrderedSimpleTaskRunner>& test_task_runner,
+      TestSchedulerFrameSourcesConstructor* frame_sources_constructor,
+      scoped_ptr<BeginFrameSource> external_begin_frame_source);
+
+  scoped_refptr<TestNowSource> now_src_;
+};
+
+}  // namespace cc
+
+#endif  // CC_TEST_SCHEDULER_TEST_COMMON_H_