Replace ASSERT with DCHECK in platform/

third_party/WebKit/Source/platform/geometry/FloatPolygon.h

 /*
  * Copyright (C) 2012 Adobe Systems Incorporated. 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.
@@ skipping 93 matching lines @@
 
   bool Intersection(const VertexPair&, FloatPoint&) const;
 };
 
 class PLATFORM_EXPORT FloatPolygonEdge final : public VertexPair {
   DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
   friend class FloatPolygon;
 
  public:
   const FloatPoint& Vertex1() const override {
-    ASSERT(polygon_);
+    DCHECK(polygon_);
     return polygon_->VertexAt(vertex_index1_);
   }
 
   const FloatPoint& Vertex2() const override {
-    ASSERT(polygon_);
+    DCHECK(polygon_);
     return polygon_->VertexAt(vertex_index2_);
   }
 
   const FloatPolygonEdge& PreviousEdge() const {
     ASSERT(polygon_ && polygon_->NumberOfEdges() > 1);
     return polygon_->EdgeAt((edge_index_ + polygon_->NumberOfEdges() - 1) %
                             polygon_->NumberOfEdges());
   }
 
   const FloatPolygonEdge& NextEdge() const {
@@ skipping 31 matching lines @@
     return String::Format("%p (%f,%f %f,%f)", edge, edge->Vertex1().X(),
                           edge->Vertex1().Y(), edge->Vertex2().X(),
                           edge->Vertex2().Y());
   }
 };
 #endif
 
 }  // namespace blink
 
 #endif  // FloatPolygon_h