Removed unnecessary parameter from didActivateCompositor()

Source/web/WebPopupMenuImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 195 matching lines @@
 void WebPopupMenuImpl::enterForceCompositingMode(bool enter)
 {
     if (m_isAcceleratedCompositingActive == enter)
         return;
 
     if (!enter) {
         m_isAcceleratedCompositingActive = false;
         m_client->didDeactivateCompositor();
     } else if (m_layerTreeView) {
         m_isAcceleratedCompositingActive = true;
-        m_client->didActivateCompositor(0);
+        m_client->didActivateCompositor();
     } else {
         TRACE_EVENT0("webkit", "WebPopupMenuImpl::enterForceCompositingMode(true)");
 
         m_client->initializeLayerTreeView();
         m_layerTreeView = m_client->layerTreeView();
         if (m_layerTreeView) {
             m_layerTreeView->setVisible(true);
-            m_client->didActivateCompositor(0);
+            m_client->didActivateCompositor();
             m_isAcceleratedCompositingActive = true;
             m_layerTreeView->setDeviceScaleFactor(m_client->deviceScaleFactor());
             m_rootLayer = adoptPtr(Platform::current()->compositorSupport()->createContentLayer(this));
             m_rootLayer->layer()->setBounds(m_size);
             m_layerTreeView->setRootLayer(*m_rootLayer->layer());
         } else {
             m_isAcceleratedCompositingActive = false;
             m_client->didDeactivateCompositor();
         }
     }
@@ skipping 209 matching lines @@
     ASSERT(widget == m_widget);
     if (m_widget) {
         m_widget->setClient(0);
         m_widget = 0;
     }
     if (m_client)
         m_client->closeWidgetSoon();
 }
 
 } // namespace blink