RELEASE_ASSERT -> CHECK and ASSERT -> DCHECK in web.

third_party/WebKit/Source/web/ValidationMessageClientImpl.cpp

 /*
  * Copyright (C) 2012 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 95 matching lines @@
 }
 
 void ValidationMessageClientImpl::documentDetached(const Document& document)
 {
     if (m_currentAnchor && m_currentAnchor->document() == document)
         hideValidationMessage(*m_currentAnchor);
 }
 
 void ValidationMessageClientImpl::checkAnchorStatus(Timer<ValidationMessageClientImpl>*)
 {
-    ASSERT(m_currentAnchor);
+    DCHECK(m_currentAnchor);
     if (monotonicallyIncreasingTime() >= m_finishTime || !currentView()) {
         hideValidationMessage(*m_currentAnchor);
         return;
     }
 
     // Check the visibility of the element.
     // FIXME: Can we check invisibility by scrollable non-frame elements?
     IntRect newAnchorRectInViewport = currentView()->contentsToViewport(m_currentAnchor->pixelSnappedBoundingBox());
 
     // FIXME: This intersection eliminates the part of the rect outside the root view.
@@ skipping 19 matching lines @@
         hideValidationMessage(*m_currentAnchor);
 }
 
 DEFINE_TRACE(ValidationMessageClientImpl)
 {
     visitor->trace(m_currentAnchor);
     ValidationMessageClient::trace(visitor);
 }
 
 } // namespace blink