Revert of Send AXLayoutComplete even when document hasn't finished loading yet.

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 162f03f05976461510ea521d29ecb4e00ba601ea..95f79cbc724c033eeb430f97c5e0db39788b65c4 100644
--- a/Source/core/frame/FrameView.cpp
+++ b/Source/core/frame/FrameView.cpp
@@ -974,8 +974,8 @@
 
     m_layoutCount++;
 
-    if (AXObjectCache* cache = rootForThisLayout->document().axObjectCache())
-        cache->handleLayoutComplete(rootForThisLayout);
+    if (AXObjectCache* cache = rootForThisLayout->document().existingAXObjectCache())
+        cache->postNotification(rootForThisLayout, AXObjectCache::AXLayoutComplete, true);
     updateAnnotatedRegions();
 
     ASSERT(!rootForThisLayout->needsLayout());