Take out the is_content_filtered bool that gets passed around betwen renderer...

content/browser/tab_contents/navigation_controller.h

 // Copyright (c) 2010 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 CONTENT_BROWSER_TAB_CONTENTS_NAVIGATION_CONTROLLER_H_
 #define CONTENT_BROWSER_TAB_CONTENTS_NAVIGATION_CONTROLLER_H_
 #pragma once
 
 #include "build/build_config.h"
 
@@ skipping 41 matching lines @@
     // By default, the entry will be filled according to a new main frame
     // navigation.
     LoadCommittedDetails()
         : entry(NULL),
           type(NavigationType::UNKNOWN),
           previous_entry_index(-1),
           is_auto(false),
           did_replace_entry(false),
           is_in_page(false),
           is_main_frame(true),
-          is_content_filtered(false),
           http_status_code(0) {
     }
 
     // The committed entry. This will be the active entry in the controller.
     NavigationEntry* entry;
 
     // The type of navigation that just occurred. Note that not all types of
     // navigations in the enum are valid here, since some of them don't actually
     // cause a "commit" and won't generate this notification.
     NavigationType::Type type;
@@ skipping 18 matching lines @@
     bool did_replace_entry;
 
     // True if the navigation was in-page. This means that the active entry's
     // URL and the |previous_url| are the same except for reference fragments.
     bool is_in_page;
 
     // True when the main frame was navigated. False means the navigation was a
     // sub-frame.
     bool is_main_frame;
 
-    // Whether the content of this frame has been altered/blocked because it was
-    // unsafe.
-    bool is_content_filtered;
-
     // When the committed load is a web page from the renderer, this string
     // specifies the security state if the page is secure.
     // See ViewHostMsg_FrameNavigate_Params.security_info, where it comes from.
     // Use SSLManager::DeserializeSecurityInfo to decode it.
     std::string serialized_security_info;
 
     // Returns whether the user probably felt like they navigated somewhere new.
     // We often need this logic for showing or hiding something, and this
     // returns true only for main frame loads that the user initiated, that go
     // to a new page.
@@ skipping 479 matching lines @@
   static size_t max_entry_count_;
 
   // If a repost is pending, its type (RELOAD or RELOAD_IGNORING_CACHE),
   // NO_RELOAD otherwise.
   ReloadType pending_reload_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationController);
 };
 
 #endif  // CONTENT_BROWSER_TAB_CONTENTS_NAVIGATION_CONTROLLER_H_