HTMLConstructionSite: avoid n^2 running time for large scripts.

Source/core/html/parser/HTMLConstructionSite.h

Index: Source/core/html/parser/HTMLConstructionSite.h
diff --git a/Source/core/html/parser/HTMLConstructionSite.h b/Source/core/html/parser/HTMLConstructionSite.h
index 48be3b05cd51924a4c44ada45cacdb078eef3c85..c6a588aeaee66c9e265791785e099e939c500216 100644
--- a/Source/core/html/parser/HTMLConstructionSite.h
+++ b/Source/core/html/parser/HTMLConstructionSite.h
@@ -113,14 +113,14 @@ public:
     void executeQueuedTasks();
 
     // flushPendingText turns pending text into queued Text insertions, but does not execute them.
-    void flushPendingText();
+    void flushPendingText(bool force);
 
     // Called before every token in HTMLTreeBuilder::processToken, thus inlined:
     void flush()
     {
         if (!hasPendingTasks())
             return;
-        flushPendingText();
+        flushPendingText(false);
         executeQueuedTasks(); // NOTE: Possible reentrancy via JavaScript execution.
         ASSERT(!hasPendingTasks());
     }