[SafeBrowsing] Reset malware indicator on page nav start.

chrome/browser/safe_browsing/client_side_detection_host.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.
 
 #ifndef CHROME_BROWSER_SAFE_BROWSING_CLIENT_SIDE_DETECTION_HOST_H_
 #define CHROME_BROWSER_SAFE_BROWSING_CLIENT_SIDE_DETECTION_HOST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 155 matching lines @@
   scoped_ptr<SafeBrowsingUIManager::UnsafeResource> unsafe_resource_;
 
   // Whether the malware IP matching feature killswitch is on.
   // This should be accessed from UI thread.
   bool malware_killswitch_on_;
 
   // Whether the malware bad ip matching and report feature is enabled.
   // This should be accessed from UI thread.
   bool malware_report_enabled_;
 
-  // Set to true if we got a match on malware or phishing for the current
-  // page load. Is reset to false when DidNavigateMainFrame is received.
-  bool malware_or_phishing_match_;
-
   DISALLOW_COPY_AND_ASSIGN(ClientSideDetectionHost);
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_CLIENT_SIDE_DETECTION_HOST_H_