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 2160493e2352d42588881d4d10641223c6b035f5..e52f68cac980ca464975e3e45ff0cfaa3cbdf8e9 100644
--- a/Source/core/rendering/RenderBlockFlow.cpp
+++ b/Source/core/rendering/RenderBlockFlow.cpp
@@ -32,6 +32,7 @@
 #include "core/rendering/RenderBlockFlow.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"
@@ -292,6 +293,10 @@ 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;
@@ -302,6 +307,9 @@ 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;