Make PaintInvalidation a DocumentLifecyle state

Source/core/frame/FrameView.cpp

Index: Source/core/frame/FrameView.cpp
diff --git a/Source/core/frame/FrameView.cpp b/Source/core/frame/FrameView.cpp
index 5dfe396c492c156d84ea8364dfced26f23cce545..e33b5119b93628119c7f773c9ca3d176c221498d 100644
--- a/Source/core/frame/FrameView.cpp
+++ b/Source/core/frame/FrameView.cpp
@@ -2826,7 +2826,7 @@ void FrameView::updateLayoutAndStyleForPainting()
     }
 
     scrollContentsIfNeededRecursive();
-    ASSERT(lifecycle().state() == DocumentLifecycle::CompositingClean);
+    ASSERT(lifecycle().state() == DocumentLifecycle::PaintInvalidationClean);
 }
 
 void FrameView::updateLayoutAndStyleIfNeededRecursive()
@@ -2882,7 +2882,9 @@ void FrameView::updateLayoutAndStyleIfNeededRecursive()
 void FrameView::invalidateTreeIfNeededRecursive()
 {
     // FIXME: We should be more aggressive at cutting tree traversals.
+    lifecycle().advanceTo(DocumentLifecycle::InPaintInvalidation);
     invalidateTreeIfNeeded();
+    lifecycle().advanceTo(DocumentLifecycle::PaintInvalidationClean);
 
     for (Frame* child = m_frame->tree().firstChild(); child; child = child->tree().nextSibling()) {
         if (!child->isLocalFrame())