Don't collect safebrowsing DOM details if the warning was main page load blocking.

chrome/browser/safe_browsing/ui_manager.h

 // Copyright (c) 2012 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_UI_MANAGER_H_
 #define CHROME_BROWSER_SAFE_BROWSING_UI_MANAGER_H_
 
@@ skipping 28 matching lines @@
   // Passed a boolean indicating whether or not it is OK to proceed with
   // loading an URL.
   typedef base::Callback<void(bool /*proceed*/)> UrlCheckCallback;
 
   // Structure used to pass parameters between the IO and UI thread when
   // interacting with the blocking page.
   struct UnsafeResource {
     UnsafeResource();
     ~UnsafeResource();
 
+    bool IsMainPageLoadBlocked() const;
+
     GURL url;
     GURL original_url;
     std::vector<GURL> redirect_urls;
     bool is_subresource;
     bool is_subframe;
     SBThreatType threat_type;
     std::string threat_metadata;
     UrlCheckCallback callback;  // This is called back on the IO thread.
     int render_process_host_id;
     int render_view_id;
@@ skipping 96 matching lines @@
   scoped_refptr<SafeBrowsingService> sb_service_;
 
   base::ObserverList<Observer> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingUIManager);
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_UI_MANAGER_H_