Only enable malware IP matching feature for canary and dev channel.

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 119 matching lines @@
   // Max number of hosts we report for each malware IP.
   static const int kMaxHostsPerIP;
 
   base::WeakPtrFactory<ClientSideDetectionHost> weak_factory_;
 
   // Unique page ID of the most recent unsafe site that was loaded in this tab
   // as well as the UnsafeResource.
   int unsafe_unique_page_id_;
   scoped_ptr<SafeBrowsingUIManager::UnsafeResource> unsafe_resource_;
 
+  // Whether the malware bad ip matching and report feature is enabled.
+  bool malware_report_enabled_;
   DISALLOW_COPY_AND_ASSIGN(ClientSideDetectionHost);
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_CLIENT_SIDE_DETECTION_HOST_H_