Replace ASSERT with DCHECK in modules/

third_party/WebKit/Source/modules/serviceworkers/ServiceWorker.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 137 matching lines @@
   }
 
   return new ServiceWorker(execution_context, std::move(handle));
 }
 
 ServiceWorker::ServiceWorker(ExecutionContext* execution_context,
                              std::unique_ptr<WebServiceWorker::Handle> handle)
     : AbstractWorker(execution_context),
       handle_(std::move(handle)),
       was_stopped_(false) {
-  ASSERT(handle_);
+  DCHECK(handle_);
   handle_->ServiceWorker()->SetProxy(this);
 }
 
 ServiceWorker::~ServiceWorker() {}
 
 DEFINE_TRACE(ServiceWorker) {
   AbstractWorker::Trace(visitor);
 }
 
 }  // namespace blink