PlzNavigate: support the WebRequest API

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>
 #include <string>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
 #include "content/browser/frame_host/frame_tree_node.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/navigation_data.h"
 #include "content/public/browser/navigation_throttle.h"
 #include "content/public/browser/ssl_status.h"
 #include "content/public/common/request_context_type.h"
 #include "url/gurl.h"
 
 struct FrameHostMsg_DidCommitProvisionalLoad_Params;
 
 namespace content {
 
+class NavigationUIData;
 class NavigatorDelegate;
 class ResourceRequestBodyImpl;
 
 // This class keeps track of a single navigation. It is created upon receipt of
 // a DidStartProvisionalLoad IPC in a RenderFrameHost. The RenderFrameHost owns
 // the newly created NavigationHandleImpl as long as the navigation is ongoing.
 // The NavigationHandleImpl in the RenderFrameHost will be reset when the
 // navigation stops, that is if one of the following events happen:
 //   - The RenderFrameHost receives a DidStartProvisionalLoad IPC for a new
 //   navigation (see below for special cases where the DidStartProvisionalLoad
@@ skipping 185 matching lines @@
 
   // Called during commit. Takes ownership of the embedder's NavigationData
   // instance. This NavigationData may have been cloned prior to being added
   // here.
   void set_navigation_data(std::unique_ptr<NavigationData> navigation_data) {
     navigation_data_ = std::move(navigation_data);
   }
 
   SSLStatus ssl_status() { return ssl_status_; }
 
+  NavigationUIData* navigation_ui_data() const {
+    return navigation_ui_data_.get();
+  }
+
  private:
   friend class NavigationHandleImplTest;
 
   // Used to track the state the navigation is currently in.
   enum State {
     INITIAL = 0,
     WILL_SEND_REQUEST,
     DEFERRING_START,
     WILL_REDIRECT_REQUEST,
     DEFERRING_REDIRECT,
@@ skipping 71 matching lines @@
 
   // The unique id of the corresponding NavigationEntry.
   int pending_nav_entry_id_;
 
   // The fetch request context type.
   RequestContextType request_context_type_;
 
   // This callback will be run when all throttle checks have been performed.
   ThrottleChecksFinishedCallback complete_callback_;
 
-  // Embedder data tied to this navigation.
+  // Embedder data from the IO thread tied to this navigation.
   std::unique_ptr<NavigationData> navigation_data_;
 
   SSLStatus ssl_status_;
 
+  // PlzNavigate
+  // Embedder data from the UI thread tied to this navigation.
+  std::unique_ptr<NavigationUIData> navigation_ui_data_;

[nasko, 2016/09/22 18:32:50]

nit: Let's put this closer to the IO thread one, SSLStatus can remain as the
last entry.

[clamy, 2016/09/26 15:37:51]

Done.

+
   DISALLOW_COPY_AND_ASSIGN(NavigationHandleImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_HANDLE_IMPL_H_