Begin removing the style recalc timer

Source/core/dom/Document.cpp

Index: Source/core/dom/Document.cpp
diff --git a/Source/core/dom/Document.cpp b/Source/core/dom/Document.cpp
index 1e60754d36d15ddc0fbcf509b857f5b323b46c9f..0411b4fb44fabd775706a9f92728e886fd5530af 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -1529,6 +1529,9 @@ PassRefPtr<TreeWalker> Document::createTreeWalker(Node* root, unsigned whatToSho
 
 void Document::scheduleStyleRecalc()
 {
+    if (!isActive())
+        return;
+
     if (shouldDisplaySeamlesslyWithParent()) {
         // When we're seamless, our parent document manages our style recalcs.
         ownerElement()->setNeedsStyleRecalc();
@@ -1536,7 +1539,7 @@ void Document::scheduleStyleRecalc()
         return;
     }
 
-    if (m_styleRecalcTimer.isActive())
+    if (m_styleRecalcTimer.isActive() || !shouldScheduleLayout())

[esprehn, 2014/01/23 22:13:00]

Are we sure this is safe? It means we'll fail to schedule a style recalc while
sheets are loading. When the sheets are done loading what will schedule the
recalc?

(I don't think you can do this, if the stylesheet was empty we'd never schedule
a recalc at all)

[abarth-chromium, 2014/01/23 22:22:53]

Nope.
Won't we kick off the process in DOMContentLoaded?
Maybe the better thing to do is to request an animation frame just after
DOMContentLoaded?

         return;
 
     ASSERT(needsStyleRecalc() || childNeedsStyleRecalc() || childNeedsDistributionRecalc() || !m_useElementsNeedingUpdate.isEmpty());