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

third_party/WebKit/Source/web/FullscreenController.cpp

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 61 matching lines @@
 
     if (!m_haveEnteredFullscreen) {
         updatePageScaleConstraints(false);
         m_webViewImpl->setPageScaleFactor(1.0f);
         m_webViewImpl->mainFrame()->setScrollOffset(WebSize());
         m_webViewImpl->setVisualViewportOffset(FloatPoint());
         m_haveEnteredFullscreen = true;
     }
 
     Fullscreen::from(document).didEnterFullScreenForElement(element.get());
-    ASSERT(Fullscreen::currentFullScreenElementFrom(document) == element);
+    DCHECK_EQ(Fullscreen::currentFullScreenElementFrom(document), element);
 
     if (isHTMLVideoElement(element)) {
         HTMLVideoElement* videoElement = toHTMLVideoElement(element);
         if (videoElement->usesOverlayFullscreenVideo() && m_webViewImpl->layerTreeView())
             m_webViewImpl->layerTreeView()->setHasTransparentBackground(true);
     }
 }
 
 void FullscreenController::didExitFullScreen()
 {
@@ skipping 57 matching lines @@
     // We need to transition to fullscreen mode.
     WebLocalFrameImpl* frame = WebLocalFrameImpl::fromFrame(element->document().frame());
     if (frame && frame->client()) {
         frame->client()->enterFullscreen();
         m_provisionalFullScreenElement = element;
     }
 }
 
 void FullscreenController::exitFullScreenForElement(Element* element)
 {
-    ASSERT(element);
+    DCHECK(element);
 
     // The client is exiting full screen, so don't send a notification.
     if (m_isCancelingFullScreen)
         return;
 
     WebLocalFrameImpl* frame = WebLocalFrameImpl::fromFrame(element->document().frame());
     if (frame && frame->client())
         frame->client()->exitFullscreen();
 }
 
@@ skipping 22 matching lines @@
 }
 
 DEFINE_TRACE(FullscreenController)
 {
     visitor->trace(m_provisionalFullScreenElement);
     visitor->trace(m_fullScreenFrame);
 }
 
 } // namespace blink