Refactor NavigationState to use NavigationParams

content/renderer/navigation_state_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_RENDERER_NAVIGATION_STATE_IMPL_H_
+#define CONTENT_RENDERER_NAVIGATION_STATE_IMPL_H_
+
+#include <string>
+
+#include "content/common/navigation_params.h"
+#include "content/public/renderer/navigation_state.h"
+
+namespace content {
+
+class CONTENT_EXPORT NavigationStateImpl : public NavigationState {
+ public:
+  ~NavigationStateImpl() override;
+
+  static NavigationStateImpl* CreateBrowserInitiated(
+      const CommonNavigationParams& common_params,
+      const StartNavigationParams& start_params,
+      const HistoryNavigationParams& history_params);
+
+  static NavigationStateImpl* CreateContentInitiated();
+
+  // NavigationState implementation.
+  ui::PageTransition GetTransitionType() override;
+  bool WasWithinSamePage() override;
+  bool IsContentInitiated() override;
+
+  const CommonNavigationParams& common_params() const { return common_params_; }
+  const StartNavigationParams& start_params() const { return start_params_; }
+  const HistoryNavigationParams& history_params() const {
+    return history_params_;
+  }
+  bool request_committed() const { return request_committed_; }
+  void set_request_committed(bool value) { request_committed_ = value; }
+  void set_was_within_same_page(bool value) { was_within_same_page_ = value; }
+
+  void set_transition_type(ui::PageTransition transition) {
+    common_params_.transition = transition;
+  }
+
+ private:
+  NavigationStateImpl(const CommonNavigationParams& common_params,
+                      const StartNavigationParams& start_params,
+                      const HistoryNavigationParams& history_params,
+                      bool is_content_initiated);
+
+  bool request_committed_;
+  bool was_within_same_page_;
+
+  // True if this navigation was not initiated via WebFrame::LoadRequest.
+  const bool is_content_initiated_;
+
+  CommonNavigationParams common_params_;
+  const StartNavigationParams start_params_;
+
+  // Note: if IsContentInitiated() is false, whether this navigation should
+  // replace the current entry in the back/forward history list is determined by
+  // the should_replace_current_entry field in |history_params|. Otherwise, use
+  // replacesCurrentHistoryItem() on the WebDataSource.
+  //
+  // TODO(davidben): It would be good to unify these and have only one source
+  // for the two cases. We can plumb this through WebFrame::loadRequest to set
+  // lockBackForwardList on the FrameLoadRequest. However, this breaks process
+  // swaps because FrameLoader::loadWithNavigationAction treats loads before a
+  // FrameLoader has committedFirstRealDocumentLoad as a replacement. (Added for
+  // http://crbug.com/178380).
+  const HistoryNavigationParams history_params_;
+
+  DISALLOW_COPY_AND_ASSIGN(NavigationStateImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_NAVIGATION_STATE_IMPL_H_