WKWebView: Do not DCHECK on invalid CertVerifierBlockAdapter::Params.

ios/web/net/cert_verifier_block_adapter.cc

 // Copyright 2015 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.
 
 #include "ios/web/net/cert_verifier_block_adapter.h"
 
 #include "base/mac/bind_objc_block.h"
 #include "net/base/net_errors.h"
 #include "net/cert/cert_verify_result.h"
 #include "net/cert/crl_set.h"
@@ skipping 52 matching lines @@
       hostname(hostname),
       flags(static_cast<CertVerifier::VerifyFlags>(0)) {
 }
 
 CertVerifierBlockAdapter::Params::~Params() {
 }
 
 void CertVerifierBlockAdapter::Verify(
     const Params& params,
     void (^completion_handler)(scoped_ptr<CertVerifyResult>, int)) {
-  DCHECK(params.cert);
-  DCHECK(params.hostname.size());
+  DCHECK(completion_handler);
 
   scoped_refptr<VerificationContext> context(
       new VerificationContext(params.cert));
   CompletionCallback callback = base::BindBlock(^(int) {
     completion_handler(context->scoped_result(), 0);
   });
   int status = cert_verifier_->Verify(params.cert.get(), params.hostname,
                                       params.ocsp_response, params.flags,
                                       params.crl_set.get(), &(context->result),
                                       callback, &(context->request), net_log_);
-  DCHECK(status != ERR_INVALID_ARGUMENT);
 
   if (status == ERR_IO_PENDING) {
     // Completion handler will be called from |callback| when verification
     // request is completed.
     return;
   }
 
   // Verification has either failed or result was retrieved from the cache.
   completion_handler(status ? nullptr : context->scoped_result(), status);
 }
 
 }  // net