Implement a fast buffer allocator for Vector, HashTable and StringBuilder

Source/bindings/core/v8/WindowProxy.cpp

Index: Source/bindings/core/v8/WindowProxy.cpp
diff --git a/Source/bindings/core/v8/WindowProxy.cpp b/Source/bindings/core/v8/WindowProxy.cpp
index f8b28acbcaee98b9cefeb478c73ad3e4f2e08aef..db1997f709dc9198b8644c28aecae836734e915f 100644
--- a/Source/bindings/core/v8/WindowProxy.cpp
+++ b/Source/bindings/core/v8/WindowProxy.cpp
@@ -125,6 +125,8 @@ void WindowProxy::disposeContext(GlobalDetachmentBehavior behavior)
     // garbage. Notify V8 about this so it'll have a chance of cleaning
     // it up when idle.
     V8GCForContextDispose::instance().notifyContextDisposed(m_frame->isMainFrame());
+
+    BufferAllocator::printStats();
 }
 
 void WindowProxy::clearForClose()