PlzNavigate: stop navigations when opening a document for write

third_party/WebKit/public/web/WebLocalFrame.h

 // Copyright 2014 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 WebLocalFrame_h
 #define WebLocalFrame_h
 
 #include <set>
 #include "WebCompositionUnderline.h"
 #include "WebFrame.h"
@@ skipping 182 matching lines @@
   // Informs the renderer that mixed content was found externally regarding this
   // frame. Currently only the the browser process can do so. The included data
   // is used for instance to report to the CSP policy and to log to the frame
   // console.
   virtual void mixedContentFound(const WebURL& mainResourceUrl,
                                  const WebURL& mixedContentUrl,
                                  WebURLRequest::RequestContext,
                                  bool wasAllowed,
                                  bool hadRedirect) = 0;
 
+  // PlzNavigate
+  // Informs the frame that the navigation it asked the client to do was
+  // dropped.
+  virtual void clientDroppedNavigation() = 0;
+
   // Orientation Changes ----------------------------------------------------
 
   // Notify the frame that the screen orientation has changed.
   virtual void sendOrientationChangeEvent() = 0;
 
   // Printing ------------------------------------------------------------
 
   // Returns true on success and sets the out parameter to the print preset
   // options for the document.
   virtual bool getPrintPresetOptionsForPlugin(const WebNode&,
@@ skipping 319 matching lines @@
   // to call these on a WebLocalFrame.
   bool isWebLocalFrame() const override = 0;
   WebLocalFrame* toWebLocalFrame() override = 0;
   bool isWebRemoteFrame() const override = 0;
   WebRemoteFrame* toWebRemoteFrame() override = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebLocalFrame_h