More switching to standard type traits

third_party/WebKit/Source/platform/graphics/paint/PaintController.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PaintController_h
 #define PaintController_h
 
 #include "platform/PlatformExport.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/geometry/IntRect.h"
@@ skipping 51 matching lines @@
     // Provide a new set of paint chunk properties to apply to recorded display
     // items, for Slimming Paint v2.
     void updateCurrentPaintChunkProperties(const PaintChunkProperties&);
 
     // Retrieve the current paint properties.
     const PaintChunkProperties& currentPaintChunkProperties() const;
 
     template <typename DisplayItemClass, typename... Args>
     void createAndAppend(Args&&... args)
     {
-        static_assert(WTF::IsSubclass<DisplayItemClass, DisplayItem>::value,
+        static_assert(std::is_base_of<DisplayItem, DisplayItemClass>::value,
             "Can only createAndAppend subclasses of DisplayItem.");
         static_assert(sizeof(DisplayItemClass) <= kMaximumDisplayItemSize,
             "DisplayItem subclass is larger than kMaximumDisplayItemSize.");
 
         if (displayItemConstructionIsDisabled())
             return;
         DisplayItemClass& displayItem = m_newDisplayItemList.allocateAndConstruct<DisplayItemClass>(WTF::forward<Args>(args)...);
         processNewItem(displayItem);
     }
 
@@ skipping 179 matching lines @@
     // easily find where the duplicated ids are from.
     DisplayItemIndicesByClientMap m_newDisplayItemIndicesByClient;
 #endif
 
     OwnPtr<Vector<String>> m_trackedPaintInvalidationObjects;
 };
 
 } // namespace blink
 
 #endif // PaintController_h