Remove dependence on a message loop for net::PathBuilder.

net/cert/internal/trust_store.h

 // Copyright 2016 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 NET_CERT_INTERNAL_TRUST_STORE_H_
 #define NET_CERT_INTERNAL_TRUST_STORE_H_
 
 #include <vector>
 
-#include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "net/base/net_export.h"
 #include "net/cert/internal/parsed_certificate.h"
 
 namespace net {
 
 namespace der {
 class Input;
 }
 
@@ skipping 87 matching lines @@
 
   scoped_refptr<ParsedCertificate> cert_;
   bool enforces_constraints_ = false;
 };
 
 using TrustAnchors = std::vector<scoped_refptr<TrustAnchor>>;
 
 // Interface for finding trust anchors.
 class NET_EXPORT TrustStore {
  public:
-  class NET_EXPORT Request {
-   public:
-    Request();
-    // Destruction of the Request cancels it.
-    virtual ~Request();
-  };
-
   TrustStore();
   virtual ~TrustStore();
 
-  using TrustAnchorsCallback = base::Callback<void(TrustAnchors)>;
-
-  // Returns the trust anchors that match |cert|'s issuer name in
-  // |*synchronous_matches| and/or through |callback|. |cert| and
-  // |synchronous_matches| must not be null.
-  //
-  // If results are available synchronously, they will be appended to
-  // |*synchronous_matches|. |*synchronous_matches| will not be modified
-  // asynchronously.
-  //
-  // If |callback| is not null and results may be available asynchronously,
-  // |*out_req| will be filled with a Request, and |callback| will be called
-  // when results are available. The Request may be destroyed to cancel
-  // the callback if it has not occurred yet.
+  // Appends the trust anchors that match |cert|'s issuer name to |*matches|.
+  // |cert| and |matches| must not be null.
   virtual void FindTrustAnchorsForCert(
       const scoped_refptr<ParsedCertificate>& cert,
-      const TrustAnchorsCallback& callback,
-      TrustAnchors* synchronous_matches,
-      std::unique_ptr<Request>* out_req) const = 0;
+      TrustAnchors* matches) const = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TrustStore);
 };
 
 }  // namespace net
 
 #endif  // NET_CERT_INTERNAL_TRUST_STORE_H_