Add switches and apis in safebrowsing code to allow tests.

chrome/browser/safe_browsing/safe_browsing_service.h

 // Copyright (c) 2009 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_
 
@@ skipping 104 matching lines @@
       const std::vector<SBFullHashResult>& full_hashes,
       bool can_cache);
 
   // Called on the IO thread.
   void HandleChunk(const std::string& list, SBChunkList* chunks);
   void HandleChunkDelete(std::vector<SBChunkDelete>* chunk_deletes);
 
   // Update management.  Called on the IO thread.
   void UpdateStarted();
   void UpdateFinished(bool update_succeeded);
+  // Whether there is an update in progress. Called on the IO thread.
+  bool IsUpdateInProgress() const;
 
   // The blocking page on the UI thread has completed.
   void OnBlockingPageDone(const std::vector<UnsafeResource>& resources,
                           bool proceed);
 
   // Called on the UI thread when the SafeBrowsingProtocolManager has received
   // updated MAC keys.
   void OnNewMacKeys(const std::string& client_key,
                     const std::string& wrapped_key);
 
@@ skipping 165 matching lines @@
   // Indicates if we're in the midst of trying to close the database.  If this
   // is true, nothing on the IO thread should access the database.
   bool closing_database_;
 
   std::deque<QueuedCheck> queued_checks_;
 
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingService);
 };
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_SERVICE_H_