Replace ASSERT and ASSERT_NOT_REACHED in core/style/

third_party/WebKit/Source/core/style/ContentData.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 61 matching lines @@
   DEFINE_TYPE_CASTS(typeName##ContentData, ContentData, content, \
                     content->is##typeName(), content.is##typeName())
 
 class ImageContentData final : public ContentData {
   friend class ContentData;
 
  public:
   const StyleImage* image() const { return m_image.get(); }
   StyleImage* image() { return m_image.get(); }
   void setImage(StyleImage* image) {
-    ASSERT(image);
+    DCHECK(image);
     m_image = image;
   }
 
   bool isImage() const override { return true; }
   LayoutObject* createLayoutObject(Document&, ComputedStyle&) const override;
 
   bool equals(const ContentData& data) const override {
     if (!data.isImage())
       return false;
     return *static_cast<const ImageContentData&>(data).image() == *image();
   }
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
-  ImageContentData(StyleImage* image) : m_image(image) { ASSERT(m_image); }
+  ImageContentData(StyleImage* image) : m_image(image) { DCHECK(m_image); }
 
   ContentData* cloneInternal() const override {
     StyleImage* image = const_cast<StyleImage*>(this->image());
     return create(image);
   }
 
   Member<StyleImage> m_image;
 };
 
 DEFINE_CONTENT_DATA_TYPE_CASTS(Image);
@@ skipping 88 matching lines @@
   return a.equals(b);
 }
 
 inline bool operator!=(const ContentData& a, const ContentData& b) {
   return !(a == b);
 }
 
 }  // namespace blink
 
 #endif  // ContentData_h