Give OOPIF FrameViews their own scroll animation timelines and hosts

third_party/WebKit/Source/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 551 matching lines @@
 LayoutViewItem FrameView::layoutViewItem() const {
   return LayoutViewItem(frame().contentLayoutObject());
 }
 
 ScrollingCoordinator* FrameView::scrollingCoordinator() const {
   Page* p = page();
   return p ? p->scrollingCoordinator() : 0;
 }
 
 CompositorAnimationHost* FrameView::compositorAnimationHost() const {
+  // When m_animationHost is not nullptr, this is the FrameView for an OOPIF.
+  if (m_animationHost)
+    return m_animationHost.get();
+
+  if (m_frame->localFrameRoot() != m_frame)
+    return m_frame->localFrameRoot()->view()->compositorAnimationHost();
+
+  if (!m_frame->isMainFrame())
+    return nullptr;
+
   ScrollingCoordinator* c = scrollingCoordinator();
   return c ? c->compositorAnimationHost() : nullptr;
 }
 
 CompositorAnimationTimeline* FrameView::compositorAnimationTimeline() const {
+  if (m_animationTimeline)
+    return m_animationTimeline.get();
+
+  if (m_frame->localFrameRoot() != m_frame)
+    return m_frame->localFrameRoot()->view()->compositorAnimationTimeline();
+
+  if (!m_frame->isMainFrame())
+    return nullptr;
+
   ScrollingCoordinator* c = scrollingCoordinator();
   return c ? c->compositorAnimationTimeline() : nullptr;
 }
 
 LayoutBox* FrameView::layoutBox() const {
   return layoutView();
 }
 
 FloatQuad FrameView::localToVisibleContentQuad(
     const FloatQuad& quad,
@@ skipping 4398 matching lines @@
 void FrameView::applyTransformForTopFrameSpace(TransformState& transformState) {
   // This is the top-level frame, so no mapping necessary.
   if (m_frame->isMainFrame())
     return;
 
   LayoutRect viewportIntersectionRect(remoteViewportIntersection());
   transformState.move(
       LayoutSize(-viewportIntersectionRect.x(), -viewportIntersectionRect.y()));
 }
 
+void FrameView::setAnimationTimeline(
+    std::unique_ptr<CompositorAnimationTimeline> timeline) {
+  m_animationTimeline = std::move(timeline);
+}
+
+void FrameView::setAnimationHost(
+    std::unique_ptr<CompositorAnimationHost> host) {
+  m_animationHost = std::move(host);
+}
+
 }  // namespace blink