Add a FrameHostMsg_BeginNavigation IPC

content/browser/frame_host/navigation_request_info.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_FRAME_HOST_NAVIGATION_REQUEST_INFO_H_
+#define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_REQUEST_INFO_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "content/public/common/page_transition_types.h"
+#include "url/gurl.h"
+
+struct FrameHostMsg_BeginNavigation_Params;
+
+namespace content {
+
+// A struct to hold the parameters needed to start a navigation request in
+// ResourceDispatcherHost. It is initialized on the UI thread, and then passed
+// to the IO thread by a NavigationRequest object.
+struct NavigationRequestInfo {
+  NavigationRequestInfo(const FrameHostMsg_BeginNavigation_Params& params);
+
+  // The following parameters should be initialized using a
+  // FrameHostMsg_BeginNavigation_Params received from the renderer, or
+  // generated on the browser side in the case of a browser-initiated navigation
+  // with no live renderer.

[nasko, 2014/07/07 11:35:07]

Does the "live renderer" detail matter? How would it be different if I typed in
the omnibox an URL that will end up in the same renderer process as the
currently used one?

[clamy, 2014/07/07 13:36:23]

I removed this point of detail.

+  std::string method;
+  GURL url;
+  GURL referrer;
+  int referrer_policy;
+
+  // Additional HTTP request headers.
+  std::string headers;
+
+  int load_flags;

[nasko, 2014/07/07 11:35:08]

Some basic comments on the fields in this struct will be useful.

[clamy, 2014/07/07 13:36:23]

Done.

+  bool has_user_gesture;
+  PageTransition transition_type;
+  bool should_replace_current_entry;
+  bool allow_download;
+
+  // ---------------------------------------------------------------------------
+  // The following parameters should be filled in by RenderFrameHostManager
+  // before the navigation request is sent to the ResourceDispatcherHost.
+  GURL first_party_for_cookies;
+  bool is_main_frame;
+  bool parent_is_main_frame;
+  bool is_showing;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_REQUEST_INFO_H_