Revert of Centralize deferred commit conditions.

Source/core/dom/Document.h

Index: Source/core/dom/Document.h
diff --git a/Source/core/dom/Document.h b/Source/core/dom/Document.h
index 96e20f72241a9861250a8c4c4f6b7215b9868736..1a4f2e01aa4ad9f9b71e1ebd7aed5bcb0e31a2a1 100644
--- a/Source/core/dom/Document.h
+++ b/Source/core/dom/Document.h
@@ -908,8 +908,6 @@
 
     const DocumentTiming& timing() const { return m_documentTiming; }
 
-    bool shouldProcessFrameLifecycle();
-
     int requestAnimationFrame(FrameRequestCallback*);
     void cancelAnimationFrame(int id);
     void serviceScriptedAnimations(double monotonicAnimationStartTime);
@@ -1146,7 +1144,6 @@
 
     bool m_hasNodesWithPlaceholderStyle;
     bool m_evaluateMediaQueriesOnStyleRecalc;
-    bool m_shouldProcessFrameLifecycle;
 
     // If we do ignore the pending stylesheet count, then we need to add a boolean
     // to track that this happened so that we can do a full repaint when the stylesheets