Compile under-invalidation checking in all builds

third_party/WebKit/Source/platform/graphics/paint/FilterDisplayItem.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 FilterDisplayItem_h
 #define FilterDisplayItem_h
 
 #include "platform/geometry/FloatRect.h"
 #include "platform/graphics/CompositorFilterOperations.h"
 #include "platform/graphics/paint/DisplayItem.h"
@@ skipping 15 matching lines @@
         , m_origin(origin) { }
 
     void replay(GraphicsContext&) const override;
     void appendToWebDisplayItemList(const IntRect&, WebDisplayItemList*) const override;
     bool drawsContent() const override;
 
 private:
 #ifndef NDEBUG
     void dumpPropertiesAsDebugString(WTF::StringBuilder&) const override;
 #endif
-#if ENABLE(ASSERT)
     bool equals(const DisplayItem& other) const final
     {
         return DisplayItem::equals(other)
             // TODO(wangxianzhu): compare m_imageFilter and m_webFilterOperations.
             && m_bounds == static_cast<const BeginFilterDisplayItem&>(other).m_bounds
             && m_origin == static_cast<const BeginFilterDisplayItem&>(other).m_origin;
     }
-#endif
 
     // FIXME: m_imageFilter should be replaced with m_webFilterOperations when copying data to the compositor.
     sk_sp<SkImageFilter> m_imageFilter;
     CompositorFilterOperations m_compositorFilterOperations;
     const FloatRect m_bounds;
     const FloatPoint m_origin;
 };
 
 class PLATFORM_EXPORT EndFilterDisplayItem final : public PairedEndDisplayItem {
 public:
     EndFilterDisplayItem(const DisplayItemClient& client)
         : PairedEndDisplayItem(client, kEndFilter, sizeof(*this)) { }
 
     void replay(GraphicsContext&) const override;
     void appendToWebDisplayItemList(const IntRect&, WebDisplayItemList*) const override;
 
 private:
 #if ENABLE(ASSERT)
     bool isEndAndPairedWith(DisplayItem::Type otherType) const final { return otherType == kBeginFilter; }
 #endif
 };
 
 } // namespace blink
 
 #endif // FilterDisplayItem_h