PlzNavigate: support the WebRequest API

content/browser/loader/navigation_url_loader.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 CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_H_
 #define CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "content/common/content_export.h"
 
 namespace content {
 
 class BrowserContext;
+class NavigationUIData;
 class NavigationURLLoaderDelegate;
 class NavigationURLLoaderFactory;
 class ServiceWorkerContextWrapper;
 struct CommonNavigationParams;
 struct NavigationRequestInfo;
 
 // PlzNavigate: The navigation logic's UI thread entry point into the resource
 // loading stack. It exposes an interface to control the request prior to
 // receiving the response. If the NavigationURLLoader is destroyed before
 // OnResponseStarted is called, the request is aborted.
 class CONTENT_EXPORT NavigationURLLoader {
  public:
   // Creates a NavigationURLLoader. The caller is responsible for ensuring that
   // |delegate| outlives the loader. |request_body| must not be accessed on the
   // UI thread after this point.
   //
   // TODO(davidben): When navigation is disentangled from the loader, the
   // request parameters should not come in as a navigation-specific
   // structure. Information like has_user_gesture and
   // should_replace_current_entry shouldn't be needed at this layer.
   static std::unique_ptr<NavigationURLLoader> Create(
       BrowserContext* browser_context,
       std::unique_ptr<NavigationRequestInfo> request_info,
+      std::unique_ptr<NavigationUIData> navigation_ui_data,
       ServiceWorkerContextWrapper* service_worker_context_wrapper,
       NavigationURLLoaderDelegate* delegate);
 
   // For testing purposes; sets the factory for use in testing.
   static void SetFactoryForTesting(NavigationURLLoaderFactory* factory);
 
   virtual ~NavigationURLLoader() {}
 
   // Called in response to OnRequestRedirected to continue processing the
   // request.
   virtual void FollowRedirect() = 0;
 
   // Called in response to OnResponseStarted to process the response.
   virtual void ProceedWithResponse() = 0;
 
  protected:
   NavigationURLLoader() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(NavigationURLLoader);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_H_