"up-to-date" should only use hyphens when used as compound modifier of a noun

components/search_provider_logos/logo_tracker.h

 // Copyright 2014 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 COMPONENTS_SEARCH_PROVIDER_LOGOS_LOGO_TRACKER_H_
 #define COMPONENTS_SEARCH_PROVIDER_LOGOS_LOGO_TRACKER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 58 matching lines @@
 
 // Parses the response from the server and returns it as an EncodedLogo. Returns
 // NULL if the response is invalid.
 typedef base::Callback<std::unique_ptr<EncodedLogo>(
     const std::unique_ptr<std::string>& response,
     base::Time response_time,
     bool* parsing_failed)>
     ParseLogoResponse;
 
 // Encodes the fingerprint of the cached logo in the logo URL. This enables the
-// server to verify whether the cached logo is up-to-date.
+// server to verify whether the cached logo is up to date.
 typedef base::Callback<GURL(const GURL& logo_url,
                             const std::string& fingerprint,
                             bool wants_cta,
                             bool transparent)> AppendQueryparamsToLogoURL;
 
 // This class provides the logo for a search provider. Logos are downloaded from
 // the search provider's logo URL and cached on disk.
 //
 // Call SetServerAPI() at least once to specify how to get the logo from the
 // server. Then call GetLogo() to trigger retrieval of the logo and receive
@@ skipping 173 matching lines @@
   scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
 
   base::WeakPtrFactory<LogoTracker> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(LogoTracker);
 };
 
 }  // namespace search_provider_logos
 
 #endif  // COMPONENTS_SEARCH_PROVIDER_LOGOS_LOGO_TRACKER_H_