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

net/cert/internal/trust_store_in_memory.h

Index: net/cert/internal/trust_store_in_memory.h
diff --git a/net/cert/internal/trust_store_in_memory.h b/net/cert/internal/trust_store_in_memory.h
index fea4c87d3149051793ab1fb96ca9ed754daddad5..1c4909e5ff7fb2f957f3a780a399a9a113c2a1f9 100644
--- a/net/cert/internal/trust_store_in_memory.h
+++ b/net/cert/internal/trust_store_in_memory.h
@@ -31,11 +31,8 @@ class NET_EXPORT TrustStoreInMemory : public TrustStore {
   void AddTrustAnchor(scoped_refptr<TrustAnchor> anchor);
 
   // TrustStore implementation:
-  void FindTrustAnchorsForCert(
-      const scoped_refptr<ParsedCertificate>& cert,
-      const TrustAnchorsCallback& callback,
-      TrustAnchors* synchronous_matches,
-      std::unique_ptr<Request>* out_req) const override;
+  void FindTrustAnchorsForCert(const scoped_refptr<ParsedCertificate>& cert,
+                               TrustAnchors* matches) const override;
 
  private:
   // Multimap from normalized subject -> TrustAnchor.