Make cluster creation independent of fingerprinting. Keep track of current

Source/core/rendering/RenderBlockFlow.cpp

Index: Source/core/rendering/RenderBlockFlow.cpp
diff --git a/Source/core/rendering/RenderBlockFlow.cpp b/Source/core/rendering/RenderBlockFlow.cpp
index d485a94340f34c0a5911fc7131ca389a2308b684..98ca6c5f670e6484792d05ccdf201d9af8f27dcb 100644
--- a/Source/core/rendering/RenderBlockFlow.cpp
+++ b/Source/core/rendering/RenderBlockFlow.cpp
@@ -33,6 +33,7 @@
 
 #include "core/accessibility/AXObjectCache.h"
 #include "core/frame/FrameView.h"
+#include "core/rendering/FastTextAutosizer.h"
 #include "core/rendering/HitTestLocation.h"
 #include "core/rendering/LayoutRectRecorder.h"
 #include "core/rendering/LayoutRepainter.h"
@@ -302,6 +303,10 @@ void RenderBlockFlow::layoutBlock(bool relayoutChildren, LayoutUnit pageLogicalH
     LayoutUnit previousHeight = logicalHeight();
     setLogicalHeight(beforeEdge);
 
+    FastTextAutosizer* textAutosizer = document().fastTextAutosizer();
+    if (textAutosizer)
+        textAutosizer->beginLayout(this);
+
     m_repaintLogicalTop = 0;
     m_repaintLogicalBottom = 0;
     LayoutUnit maxFloatLogicalBottom = 0;
@@ -312,6 +317,9 @@ void RenderBlockFlow::layoutBlock(bool relayoutChildren, LayoutUnit pageLogicalH
     else
         layoutBlockChildren(relayoutChildren, maxFloatLogicalBottom, layoutScope, beforeEdge, afterEdge);
 
+    if (textAutosizer)
+        textAutosizer->endLayout(this);
+
     if (frameView()->partialLayout().isStopping()) {
         statePusher.pop();
         return;