PlzNavigate: Fix the http/tests/loading/307-after-303-after-post.html and the http/tests/loading/re…

third_party/WebKit/public/web/WebDataSource.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 42 matching lines @@
 
   // Returns the original request that resulted in this datasource.
   virtual const WebURLRequest& originalRequest() const = 0;
 
   // Returns the request corresponding to this datasource.  It may
   // include additional request headers added by WebKit that were not
   // present in the original request.  This request may also correspond
   // to a location specified by a redirect that was followed.
   virtual const WebURLRequest& getRequest() const = 0;
 
+  // Returns the request corresponding to this data source. The caller can
+  // modify this request.
+  virtual WebURLRequest& getRequestWritable() = 0;

[Nate Chapin, 2017/03/06 19:16:03]

Rather than exposing this as a one-off, let's pass the WebURLRequest as a
parameter on didStartProvisionalLoad.

[ananta, 2017/03/06 22:42:05]

Done.

+
   // Returns the response associated with this datasource.
   virtual const WebURLResponse& response() const = 0;
 
   // When this datasource was created as a result of WebFrame::loadData,
   // there may be an associated unreachableURL.
   virtual bool hasUnreachableURL() const = 0;
   virtual WebURL unreachableURL() const = 0;
 
   // Allows the embedder to append redirects to the chain as a navigation
   // is starting, in case it is being transferred from another process.
@@ skipping 47 matching lines @@
   // datasource is destroyed or when a new filter is set.
   virtual void setSubresourceFilter(WebDocumentSubresourceFilter*) = 0;
 
  protected:
   ~WebDataSource() {}
 };
 
 }  // namespace blink
 
 #endif