Replace remaining ASSERT with DCHECK/_EQ as appropriate

third_party/WebKit/Source/platform/mojo/ReferrerStructTraits.h

 // Copyright 2017 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.
 
 #ifndef ReferrerStructTraits_h
 #define ReferrerStructTraits_h
 
 #include "platform/weborigin/Referrer.h"
 #include "platform/weborigin/ReferrerPolicy.h"
 #include "platform/wtf/Assertions.h"
@@ skipping 19 matching lines @@
   static bool Read(blink::mojom::ReferrerDataView data, blink::Referrer* out) {
     blink::KURL referrer;
     blink::WebReferrerPolicy webReferrerPolicy;
     if (!data.ReadUrl(&referrer) || !data.ReadPolicy(&webReferrerPolicy))
       return false;
 
     out->referrer_policy =
         static_cast<blink::ReferrerPolicy>(webReferrerPolicy);
     out->referrer = AtomicString(referrer.GetString());
 
-    // Mimics the ASSERT() done in the blink::Referrer constructor.
+    // Mimics the DCHECK() done in the blink::Referrer constructor.
     return referrer.IsValid() || out->referrer == blink::Referrer::NoReferrer();
   }
 };
 
 }  // namespace mojo
 
 #endif  // ReferrerStructTraits_h