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 984ec4be8c5e80e9c95776ae979b352f4f6947fc..430a8200283e75598e122033878e04262d2bbd93 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"
@@ -296,6 +297,10 @@ void RenderBlockFlow::layoutBlock(bool relayoutChildren, LayoutUnit pageLogicalH
 
     SubtreeLayoutScope layoutScope(this);
 
+    FastTextAutosizer* textAutosizer = document().fastTextAutosizer();
+    if (textAutosizer)
+        textAutosizer->beginLayout(this);
+
     m_repaintLogicalTop = 0;
     m_repaintLogicalBottom = 0;
     LayoutUnit maxFloatLogicalBottom = 0;
@@ -306,6 +311,9 @@ void RenderBlockFlow::layoutBlock(bool relayoutChildren, LayoutUnit pageLogicalH
     else
         layoutBlockChildren(relayoutChildren, maxFloatLogicalBottom, layoutScope);
 
+    if (textAutosizer)
+        textAutosizer->endLayout(this);
+
     if (frameView()->partialLayout().isStopping()) {
         statePusher.pop();
         return;