Revert of PlzNavigate: send SourceLocation when mixed content is found

content/browser/frame_host/navigation_handle_impl.h

 // Copyright 2015 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_FRAME_HOST_NAVIGATION_HANDLE_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_HANDLE_IMPL_H_
 
 #include "content/public/browser/navigation_handle.h"
 
 #include <stddef.h>
@@ skipping 352 matching lines @@
   }
 
   void set_base_url_for_data_url(const GURL& url) {
     base_url_for_data_url_ = url;
   }
 
   CSPDisposition should_check_main_world_csp() const {
     return should_check_main_world_csp_;
   }
 
-  const SourceLocation& source_location() const { return source_location_; }
-  void set_source_location(const SourceLocation& source_location) {
-    source_location_ = source_location;
-  }
-
  private:
   friend class NavigationHandleImplTest;
 
   NavigationHandleImpl(const GURL& url,
                        const std::vector<GURL>& redirect_chain,
                        FrameTreeNode* frame_tree_node,
                        bool is_renderer_initiated,
                        bool is_same_page,
                        const base::TimeTicks& navigation_start,
                        int pending_nav_entry_id,
@@ skipping 156 matching lines @@
   NavigationType navigation_type_;
 
   // Whether or not the CSP of the main world should apply. When the navigation
   // is initiated from a content script in an isolated world, the CSP defined
   // in the main world should not apply.
   CSPDisposition should_check_main_world_csp_;
 
   // Whether or not the navigation results from the submission of a form.
   bool is_form_submission_;
 
-  // PlzNavigate
-  // Information about the JavaScript that started the navigation. For
-  // navigations initiated by Javascript.
-  SourceLocation source_location_;
-
   base::WeakPtrFactory<NavigationHandleImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationHandleImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_HANDLE_IMPL_H_