Log predictor database size on startup

chrome/browser/net/predictor.h

 // Copyright (c) 2012 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.
 
 // A Predictor object is instantiated once in the browser process, and manages
 // both preresolution of hostnames, as well as TCP/IP preconnection to expected
 // subresources.
 // Most hostname lists are provided by the renderer processes, and include URLs
 // that *might* be used in the near future by the browsing user.  One goal of
 // this class is to cause the underlying DNS structure to lookup a hostname
@@ skipping 466 matching lines @@
   // If we can determine immediately (i.e. synchronously) that requests to this
   // URL would likely go through a proxy, then return true.  Otherwise, return
   // false. This is used to avoid issuing DNS requests when a fixed proxy
   // configuration is in place, which improves efficiency, and is also important
   // if the unproxied DNS may contain incorrect entries.
   bool WouldLikelyProxyURL(const GURL& url);
 
   // Applies the HSTS redirect for |url|, if any.
   GURL GetHSTSRedirectOnIOThread(const GURL& url);
 
+  void LogStartupMetrics();
+
   // ------------- End IO thread methods.
 
   std::unique_ptr<InitialObserver> initial_observer_;
 
   // Reference to URLRequestContextGetter from the Profile which owns the
   // predictor. Used by Preconnect.
   scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_;
 
   // Status of speculative DNS resolution and speculative TCP/IP connection
   // feature. This is false if and only if disabled by a command line switch.
@@ skipping 100 matching lines @@
 
  private:
   // These member functions return True for unittests.
   bool CanPrefetchAndPrerender() const override;
   bool CanPreresolveAndPreconnect() const override;
 };
 
 }  // namespace chrome_browser_net
 
 #endif  // CHROME_BROWSER_NET_PREDICTOR_H_