Make PaintInvalidation a DocumentLifecyle state

Source/core/dom/DocumentLifecycle.cpp

Index: Source/core/dom/DocumentLifecycle.cpp
diff --git a/Source/core/dom/DocumentLifecycle.cpp b/Source/core/dom/DocumentLifecycle.cpp
index fcad629fdd4a5db361405adeadd4348e0a4b0448..b8f0d198767213bc8b2b176e950f81214b2db308 100644
--- a/Source/core/dom/DocumentLifecycle.cpp
+++ b/Source/core/dom/DocumentLifecycle.cpp
@@ -130,6 +130,20 @@ bool DocumentLifecycle::canAdvanceTo(State state) const
     if (m_state == CompositingClean) {
         if (state == InStyleRecalc)
             return true;
+        if (state == InCompositingUpdate)
+            return true;
+        if (state == InPaintInvalidation)
+            return true;
+        return false;
+    }
+    if (m_state == InPaintInvalidation) {
+        if (state == PaintInvalidationClean)
+            return true;
+        return false;
+    }
+    if (m_state == PaintInvalidationClean) {
+        if (state == InStyleRecalc)
+            return true;
         if (state == InPreLayout)
             return true;
         if (state == InCompositingUpdate)
@@ -144,7 +158,7 @@ bool DocumentLifecycle::canRewindTo(State state) const
     // This transition is bogus, but we've whitelisted it anyway.
     if (s_deprecatedTransitionStack && m_state == s_deprecatedTransitionStack->from() && state == s_deprecatedTransitionStack->to())
         return true;
-    return m_state == StyleClean || m_state == AfterPerformLayout || m_state == LayoutClean || m_state == CompositingClean;
+    return m_state == StyleClean || m_state == AfterPerformLayout || m_state == LayoutClean || m_state == CompositingClean || m_state == PaintInvalidationClean;
 }
 
 #endif