PlzNavigate: don't stop all loaders when renderer-initiated nav fails

content/renderer/render_frame_impl.h

 // Copyright 2013 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_RENDERER_RENDER_FRAME_IMPL_H_
 #define CONTENT_RENDERER_RENDER_FRAME_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 887 matching lines @@
   void OnCommitNavigation(const ResourceResponseHead& response,
                           const GURL& stream_url,
                           const CommonNavigationParams& common_params,
                           const RequestNavigationParams& request_params);
   void OnFailedNavigation(const CommonNavigationParams& common_params,
                           const RequestNavigationParams& request_params,
                           bool has_stale_copy_in_cache,
                           int error_code);
   void OnReportContentSecurityPolicyViolation(
       const content::CSPViolationParams& violation_params);
+  void OnDroppedNavigation();
   void OnGetSavableResourceLinks();
   void OnGetSerializedHtmlWithLocalLinks(
       const std::map<GURL, base::FilePath>& url_to_local_path,
       const std::map<int, base::FilePath>& frame_routing_id_to_local_path);
   void OnSerializeAsMHTML(const FrameMsg_SerializeAsMHTML_Params& params);
   void OnFind(int request_id,
               const base::string16& search_text,
               const blink::WebFindOptions& options);
   void OnClearActiveFindMatch();
   void OnStopFinding(StopFindAction action);
@@ skipping 507 matching lines @@
   std::unique_ptr<PendingNavigationInfo> pending_navigation_info_;
 
   base::WeakPtrFactory<RenderFrameImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_IMPL_H_