Remove unused DidPageReceiveSafeBrowsingMatch code.

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 41 matching lines @@
   void OnSafeBrowsingHit(
       const SafeBrowsingUIManager::UnsafeResource& resource) override;
 
   // Called when the SafeBrowsingService finds a match on the SB lists.
   // Called on the UI thread. Called even if the resource is whitelisted.
   void OnSafeBrowsingMatch(
       const SafeBrowsingUIManager::UnsafeResource& resource) override;
 
   virtual scoped_refptr<SafeBrowsingDatabaseManager> database_manager();
 
-  // Returns whether the current page contains a malware or phishing safe
-  // browsing match.
-  bool DidPageReceiveSafeBrowsingMatch() const;
-
  protected:
   explicit ClientSideDetectionHost(content::WebContents* tab);
 
   // From content::WebContentsObserver.
   void WebContentsDestroyed() override;
 
   // Used for testing.
   void set_safe_browsing_managers(
       SafeBrowsingUIManager* ui_manager,
       SafeBrowsingDatabaseManager* database_manager);
@@ skipping 94 matching lines @@
   scoped_ptr<SafeBrowsingUIManager::UnsafeResource> unsafe_resource_;
 
   base::WeakPtrFactory<ClientSideDetectionHost> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ClientSideDetectionHost);
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_CLIENT_SIDE_DETECTION_HOST_H_