Remove parts of //cc we aren't using

cc/animation/animation.h

-// Copyright 2012 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_ANIMATION_ANIMATION_H_
-#define CC_ANIMATION_ANIMATION_H_
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/time/time.h"
-#include "cc/base/cc_export.h"
-
-namespace cc {
-
-class AnimationCurve;
-
-// An Animation contains all the state required to play an AnimationCurve.
-// Specifically, the affected property, the run state (paused, finished, etc.),
-// loop count, last pause time, and the total time spent paused.
-class CC_EXPORT Animation {
- public:
-  // Animations begin in the 'WAITING_FOR_TARGET_AVAILABILITY' state. An
-  // Animation waiting for target availibility will run as soon as its target
-  // property is free (and all the animations animating with it are also able to
-  // run). When this time arrives, the controller will move the animation into
-  // the STARTING state, and then into the RUNNING state. RUNNING animations may
-  // toggle between RUNNING and PAUSED, and may be stopped by moving into either
-  // the ABORTED or FINISHED states. A FINISHED animation was allowed to run to
-  // completion, but an ABORTED animation was not.
-  enum RunState {
-    WAITING_FOR_TARGET_AVAILABILITY = 0,
-    WAITING_FOR_DELETION,
-    STARTING,
-    RUNNING,
-    PAUSED,
-    FINISHED,
-    ABORTED,
-    // This sentinel must be last.
-    LAST_RUN_STATE = ABORTED
-  };
-
-  enum TargetProperty {
-    TRANSFORM = 0,
-    OPACITY,
-    FILTER,
-    SCROLL_OFFSET,
-    BACKGROUND_COLOR,
-    // This sentinel must be last.
-    LAST_TARGET_PROPERTY = BACKGROUND_COLOR
-  };
-
-  enum Direction {
-    DIRECTION_NORMAL,
-    DIRECTION_REVERSE,
-    DIRECTION_ALTERNATE,
-    DIRECTION_ALTERNATE_REVERSE
-  };
-
-  enum FillMode {
-    FILL_MODE_NONE,
-    FILL_MODE_FORWARDS,
-    FILL_MODE_BACKWARDS,
-    FILL_MODE_BOTH
-  };
-
-  static scoped_ptr<Animation> Create(scoped_ptr<AnimationCurve> curve,
-                                      int animation_id,
-                                      int group_id,
-                                      TargetProperty target_property);
-
-  virtual ~Animation();
-
-  int id() const { return id_; }
-  int group() const { return group_; }
-  TargetProperty target_property() const { return target_property_; }
-
-  RunState run_state() const { return run_state_; }
-  void SetRunState(RunState run_state, base::TimeTicks monotonic_time);
-
-  // This is the number of times that the animation will play. If this
-  // value is zero the animation will not play. If it is negative, then
-  // the animation will loop indefinitely.
-  double iterations() const { return iterations_; }
-  void set_iterations(double n) { iterations_ = n; }
-
-  double iteration_start() const { return iteration_start_; }
-  void set_iteration_start(double iteration_start) {
-    iteration_start_ = iteration_start;
-  }
-
-  base::TimeTicks start_time() const { return start_time_; }
-
-  void set_start_time(base::TimeTicks monotonic_time) {
-    start_time_ = monotonic_time;
-  }
-  bool has_set_start_time() const { return !start_time_.is_null(); }
-
-  base::TimeDelta time_offset() const { return time_offset_; }
-  void set_time_offset(base::TimeDelta monotonic_time) {
-    time_offset_ = monotonic_time;
-  }
-
-  void Suspend(base::TimeTicks monotonic_time);
-  void Resume(base::TimeTicks monotonic_time);
-
-  Direction direction() { return direction_; }
-  void set_direction(Direction direction) { direction_ = direction; }
-
-  FillMode fill_mode() { return fill_mode_; }
-  void set_fill_mode(FillMode fill_mode) { fill_mode_ = fill_mode; }
-
-  double playback_rate() { return playback_rate_; }
-  void set_playback_rate(double playback_rate) {
-    playback_rate_ = playback_rate;
-  }
-
-  bool IsFinishedAt(base::TimeTicks monotonic_time) const;
-  bool is_finished() const {
-    return run_state_ == FINISHED || run_state_ == ABORTED ||
-           run_state_ == WAITING_FOR_DELETION;
-  }
-
-  bool InEffect(base::TimeTicks monotonic_time) const;
-
-  AnimationCurve* curve() { return curve_.get(); }
-  const AnimationCurve* curve() const { return curve_.get(); }
-
-  // If this is true, even if the animation is running, it will not be tickable
-  // until it is given a start time. This is true for animations running on the
-  // main thread.
-  bool needs_synchronized_start_time() const {
-    return needs_synchronized_start_time_;
-  }
-  void set_needs_synchronized_start_time(bool needs_synchronized_start_time) {
-    needs_synchronized_start_time_ = needs_synchronized_start_time;
-  }
-
-  // This is true for animations running on the main thread when the FINISHED
-  // event sent by the corresponding impl animation has been received.
-  bool received_finished_event() const {
-    return received_finished_event_;
-  }
-  void set_received_finished_event(bool received_finished_event) {
-    received_finished_event_ = received_finished_event;
-  }
-
-  // Takes the given absolute time, and using the start time and the number
-  // of iterations, returns the relative time in the current iteration.
-  base::TimeDelta TrimTimeToCurrentIteration(
-      base::TimeTicks monotonic_time) const;
-
-  scoped_ptr<Animation> CloneAndInitialize(RunState initial_run_state) const;
-
-  bool is_controlling_instance() const { return is_controlling_instance_; }
-
-  void PushPropertiesTo(Animation* other) const;
-
-  void set_is_impl_only(bool is_impl_only) { is_impl_only_ = is_impl_only; }
-  bool is_impl_only() const { return is_impl_only_; }
-
-  void set_affects_active_observers(bool affects_active_observers) {
-    affects_active_observers_ = affects_active_observers;
-  }
-  bool affects_active_observers() const { return affects_active_observers_; }
-
-  void set_affects_pending_observers(bool affects_pending_observers) {
-    affects_pending_observers_ = affects_pending_observers;
-  }
-  bool affects_pending_observers() const { return affects_pending_observers_; }
-
- private:
-  Animation(scoped_ptr<AnimationCurve> curve,
-            int animation_id,
-            int group_id,
-            TargetProperty target_property);
-
-  base::TimeDelta ConvertToActiveTime(base::TimeTicks monotonic_time) const;
-
-  scoped_ptr<AnimationCurve> curve_;
-
-  // IDs must be unique.
-  int id_;
-
-  // Animations that must be run together are called 'grouped' and have the same
-  // group id. Grouped animations are guaranteed to start at the same time and
-  // no other animations may animate any of the group's target properties until
-  // all animations in the group have finished animating.
-  int group_;
-
-  TargetProperty target_property_;
-  RunState run_state_;
-  double iterations_;
-  double iteration_start_;
-  base::TimeTicks start_time_;
-  Direction direction_;
-  double playback_rate_;
-  FillMode fill_mode_;
-
-  // The time offset effectively pushes the start of the animation back in time.
-  // This is used for resuming paused animations -- an animation is added with a
-  // non-zero time offset, causing the animation to skip ahead to the desired
-  // point in time.
-  base::TimeDelta time_offset_;
-
-  bool needs_synchronized_start_time_;
-  bool received_finished_event_;
-
-  // When an animation is suspended, it behaves as if it is paused and it also
-  // ignores all run state changes until it is resumed. This is used for testing
-  // purposes.
-  bool suspended_;
-
-  // These are used in TrimTimeToCurrentIteration to account for time
-  // spent while paused. This is not included in AnimationState since it
-  // there is absolutely no need for clients of this controller to know
-  // about these values.
-  base::TimeTicks pause_time_;
-  base::TimeDelta total_paused_time_;
-
-  // Animations lead dual lives. An active animation will be conceptually owned
-  // by two controllers, one on the impl thread and one on the main. In reality,
-  // there will be two separate Animation instances for the same animation. They
-  // will have the same group id and the same target property (these two values
-  // uniquely identify an animation). The instance on the impl thread is the
-  // instance that ultimately controls the values of the animating layer and so
-  // we will refer to it as the 'controlling instance'.
-  bool is_controlling_instance_;
-
-  bool is_impl_only_;
-
-  // When pushed from a main-thread controller to a compositor-thread
-  // controller, an animation will initially only affect pending observers
-  // (corresponding to layers in the pending tree). Animations that only
-  // affect pending observers are able to reach the STARTING state and tick
-  // pending observers, but cannot proceed any further and do not tick active
-  // observers. After activation, such animations affect both kinds of observers
-  // and are able to proceed past the STARTING state. When the removal of
-  // an animation is pushed from a main-thread controller to a
-  // compositor-thread controller, this initially only makes the animation
-  // stop affecting pending observers. After activation, such animations no
-  // longer affect any observers, and are deleted.
-  bool affects_active_observers_;
-  bool affects_pending_observers_;
-
-  DISALLOW_COPY_AND_ASSIGN(Animation);
-};
-
-}  // namespace cc
-
-#endif  // CC_ANIMATION_ANIMATION_H_