Remove CertTrustAnchorProvider from net

chrome/browser/chromeos/policy/policy_cert_verifier.h

 // Copyright (c) 2013 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 CHROME_BROWSER_CHROMEOS_POLICY_POLICY_CERT_VERIFIER_H_
 #define CHROME_BROWSER_CHROMEOS_POLICY_POLICY_CERT_VERIFIER_H_
 
 #include <memory>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "net/base/completion_callback.h"
-#include "net/cert/cert_trust_anchor_provider.h"
 #include "net/cert/cert_verifier.h"
 
 namespace net {
 class CertVerifyProc;
 class CertVerifyResult;
 class X509Certificate;
 typedef std::vector<scoped_refptr<X509Certificate> > CertificateList;
 }
 
 namespace policy {
 
 // Wraps a MultiThreadedCertVerifier to make it use the additional trust anchors
 // configured by the ONC user policy.
-class PolicyCertVerifier : public net::CertVerifier,
-                           public net::CertTrustAnchorProvider {
+class PolicyCertVerifier : public net::CertVerifier {
  public:
   // Except for tests, PolicyCertVerifier should only be created by
   // PolicyCertService, which is the counterpart of this class on the UI thread.
   // Except of the constructor, all methods and the destructor must be called on
   // the IO thread. Calls |anchor_used_callback| on the IO thread everytime a
   // certificate from the additional trust anchors (set with SetTrustAnchors) is
   // used.
   explicit PolicyCertVerifier(const base::Closure& anchor_used_callback);
   ~PolicyCertVerifier() override;
 
   void InitializeOnIOThread(
       const scoped_refptr<net::CertVerifyProc>& verify_proc);
 
   // Sets the additional trust anchors.
   void SetTrustAnchors(const net::CertificateList& trust_anchors);
 
   // CertVerifier:
   // Note: |callback| can be null.
   int Verify(const RequestParams& params,
              net::CRLSet* crl_set,
              net::CertVerifyResult* verify_result,
              const net::CompletionCallback& callback,
              std::unique_ptr<Request>* out_req,
              const net::BoundNetLog& net_log) override;
 
   bool SupportsOCSPStapling() override;
 
-  // CertTrustAnchorProvider:
-  const net::CertificateList& GetAdditionalTrustAnchors() override;
-
  private:
   net::CertificateList trust_anchors_;
   base::Closure anchor_used_callback_;
   std::unique_ptr<CertVerifier> delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(PolicyCertVerifier);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_POLICY_CERT_VERIFIER_H_