Implement a whitelist for code-signing certificates.

chrome/browser/safe_browsing/safe_browsing_service.h

 // Copyright (c) 2011 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.
 //
 // The Safe Browsing service is responsible for downloading anti-phishing and
 // anti-malware tables and checking urls against them.
 
 #ifndef CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_SERVICE_H_
 #define CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_SERVICE_H_
 #pragma once
@@ skipping 190 matching lines @@
   // true if an error occurs. This method is expected to be called on the IO
   // thread.
   virtual bool MatchCsdWhitelistUrl(const GURL& url);
 
   // Check if the |url| matches any of the full-length hashes from the
   // download whitelist.  Returns true if there was a match and false otherwise.
   // To make sure we are conservative we will return true if an error occurs.
   // This method is expected to be called on the IO thread.
   virtual bool MatchDownloadWhitelistUrl(const GURL& url);
 
+  // Check if |str| matches any of the full-length hashes from the download
+  // whitelist.  Returns true if there was a match and false otherwise.
+  // To make sure we are conservative we will return true if an error occurs.
+  // This method is expected to be called on the IO thread.
+  virtual bool MatchDownloadWhitelistString(const std::string& str);
+
   // Called on the IO thread to cancel a pending check if the result is no
   // longer needed.
   void CancelCheck(Client* client);
 
   // Called on the IO thread to display an interstitial page.
   // |url| is the url of the resource that matches a safe browsing list.
   // If the request contained a chain of redirects, |url| is the last url
   // in the chain, and |original_url| is the first one (the root of the
   // chain). Otherwise, |original_url| = |url|.
   void DisplayBlockingPage(const GURL& url,
@@ skipping 351 matching lines @@
 class SafeBrowsingServiceFactory {
  public:
   SafeBrowsingServiceFactory() { }
   virtual ~SafeBrowsingServiceFactory() { }
   virtual SafeBrowsingService* CreateSafeBrowsingService() = 0;
  private:
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingServiceFactory);
 };
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_SERVICE_H_