Move Document::m_inStyleRecalc into DocumentLifecycle

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 157548f32b023d0de8923702c445c9ba2b6f664d..c6b52d66c166c36b2ecf6c683df94dbf04d33cf9 100644
--- a/Source/core/dom/DocumentLifecycle.cpp
+++ b/Source/core/dom/DocumentLifecycle.cpp
@@ -48,7 +48,7 @@ void DocumentLifecycle::advanceTo(State state)
 {
     // FIXME: We can dispose a document multiple times. This seems wrong.
     // See https://code.google.com/p/chromium/issues/detail?id=301668.
-    ASSERT(state > m_state || (state == Disposed && m_state == Disposed));
+    ASSERT(state > m_state || (state == Disposed && m_state == Disposed) || (isActive() && state == Clean));
     m_state = state;
 }