Replace DCHECK with DCHECK_op and split some DCHECKs wherever necessary

third_party/WebKit/Source/core/layout/compositing/CompositingReasonFinder.cpp

 // 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.
 
 #include "core/layout/compositing/CompositingReasonFinder.h"
 
 #include "core/CSSPropertyNames.h"
 #include "core/dom/Document.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/Settings.h"
@@ skipping 216 matching lines @@
            LayoutRect(layer->boundingBoxForCompositing())) ||
        layer->compositesWithTransform() || layer->compositesWithOpacity())) {
     return false;
   }
   // Don't promote fixed position elements that are descendants of a non-view
   // container, e.g. transformed elements.  They will stay fixed wrt the
   // container rather than the enclosing frame.
   EPosition position = layer->layoutObject().style()->position();
   if (position == EPosition::kFixed)
     return layer->fixedToViewport() && m_layoutView.frameView()->isScrollable();
-  DCHECK(position == EPosition::kSticky);
+  DCHECK_EQ(position, EPosition::kSticky);
 
   // Don't promote sticky position elements that cannot move with scrolls.
   if (!layer->sticksToScroller())
     return false;
   if (layer->ancestorOverflowLayer()->isRootLayer())
     return m_layoutView.frameView()->isScrollable();
   return layer->ancestorOverflowLayer()->scrollsOverflow();
 }
 
 }  // namespace blink