Consistently use int64 for integers holding number of milliseconds.

chrome/browser/net/url_fetcher_protect.h

 // Copyright (c) 2006-2008 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.
 //
 // This file implements backoff in the suggest system so that we don't
 // DOS the Suggest servers when using URLFetcher.
 
 #ifndef CHROME_BROWSER_URL_FETCHER_PROTECT_H__
 #define CHROME_BROWSER_URL_FETCHER_PROTECT_H__
 
@@ skipping 35 matching lines @@
                          double multiplier, int constant_factor,
                          int maximum_timeout);
 
 
   virtual ~URLFetcherProtectEntry() { }
 
   // When a connection event happens, log it to the queue, and recalculate
   // the timeout period. It returns the backoff time, in milliseconds, that
   // indicates to the sender how long should it wait before sending the request.
   // If the request is allowed to be sent immediately, the backoff time is 0.
-  int UpdateBackoff(EventType event_type);
+  int64 UpdateBackoff(EventType event_type);
 
   // Returns the max retries allowed.
   int max_retries() const {
     return max_retries_;
   }
 
  private:
   // When a request comes, calculate the release time for it.
   // Returns the backoff time before sending.
   base::TimeDelta AntiOverload();
@@ skipping 68 matching lines @@
   typedef std::map<const std::string, URLFetcherProtectEntry*> ProtectService;
 
   static Lock lock_;
   static scoped_ptr<URLFetcherProtectManager> protect_manager_;
   ProtectService services_;
 
   DISALLOW_COPY_AND_ASSIGN(URLFetcherProtectManager);
 };
 
 #endif  // CHROME_BROWSER_URL_FETCHER_PROTECT_H__