Remove ScrollableArea::GetFrameViewBase and move ScheduleAnimation into subclasses.

third_party/WebKit/Source/platform/scroll/ScrollableArea.cpp

 /*
  * Copyright (c) 2010, Google Inc. All rights reserved.
  * Copyright (C) 2008, 2011 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 475 matching lines @@
 void ScrollableArea::LayerForScrollingDidChange(
     CompositorAnimationTimeline* timeline) {
   if (ProgrammaticScrollAnimator* programmatic_scroll_animator =
           ExistingProgrammaticScrollAnimator())
     programmatic_scroll_animator->LayerForCompositedScrollingDidChange(
         timeline);
   if (ScrollAnimatorBase* scroll_animator = ExistingScrollAnimator())
     scroll_animator->LayerForCompositedScrollingDidChange(timeline);
 }
 
-bool ScrollableArea::ScheduleAnimation() {
-  if (HostWindow* window = GetHostWindow()) {
-    window->ScheduleAnimation(GetFrameViewBase());
-    return true;
-  }
-  return false;
-}
-
 void ScrollableArea::ServiceScrollAnimations(double monotonic_time) {
   bool requires_animation_service = false;
   if (ScrollAnimatorBase* scroll_animator = ExistingScrollAnimator()) {
     scroll_animator->TickAnimation(monotonic_time);
     if (scroll_animator->HasAnimationThatRequiresService())
       requires_animation_service = true;
   }
   if (ProgrammaticScrollAnimator* programmatic_scroll_animator =
           ExistingProgrammaticScrollAnimator()) {
     programmatic_scroll_animator->TickAnimation(monotonic_time);
@@ skipping 165 matching lines @@
                                          offset.y() - ScrollOrigin().Y());
   SetScrollOffset(new_offset, kCompositorScroll);
 }
 
 DEFINE_TRACE(ScrollableArea) {
   visitor->Trace(scroll_animator_);
   visitor->Trace(programmatic_scroll_animator_);
 }
 
 }  // namespace blink