Compile under-invalidation checking in all builds

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

 // Copyright 2016 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 ForeignLayerDisplayItem_h
 #define ForeignLayerDisplayItem_h
 
 #include "base/memory/ref_counted.h"
 #include "platform/PlatformExport.h"
 #include "platform/RuntimeEnabledFeatures.h"
@@ skipping 24 matching lines @@
     ~ForeignLayerDisplayItem();
 
     cc::Layer* layer() const { return m_layer.get(); }
     const FloatPoint& location() const { return m_location; }
     const IntSize& bounds() const { return m_bounds; }
 
     // DisplayItem
     void replay(GraphicsContext&) const override;
     void appendToWebDisplayItemList(const IntRect&, WebDisplayItemList*) const override;
     bool drawsContent() const override;
-#if ENABLE(ASSERT)
     bool equals(const DisplayItem&) const override;
-#endif
 #ifndef NDEBUG
     void dumpPropertiesAsDebugString(StringBuilder&) const override;
 #endif
 
 private:
     scoped_refptr<cc::Layer> m_layer;
     FloatPoint m_location;
     IntSize m_bounds;
 };
 
 // Records a foreign layer into a GraphicsContext.
 // Use this where you would use a recorder class.
 PLATFORM_EXPORT void recordForeignLayer(
     GraphicsContext&, const DisplayItemClient&, DisplayItem::Type,
     WebLayer*, const FloatPoint& location, const IntSize& bounds);
 
 } // namespace blink
 
 #endif // ForeignLayerDisplayItem_h