make NavigationGesture part of public content API and use it outside content

components/navigation_interception/navigation_params.h

 // Copyright (c) 2013 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 COMPONENTS_NAVIGATION_INTERCEPTION_NAVIGATION_PARAMS_H_
 #define COMPONENTS_NAVIGATION_INTERCEPTION_NAVIGATION_PARAMS_H_
 
+#include "content/public/common/navigation_gesture.h"
 #include "content/public/common/referrer.h"
 #include "ui/base/page_transition_types.h"
 #include "ui/base/page_transition_types.h"
 #include "url/gurl.h"
 
 namespace navigation_interception {
 
 class NavigationParams {
  public:
   NavigationParams(const GURL& url,
                    const content::Referrer& referrer,
-                   bool has_user_gesture,
+                   content::NavigationGesture gesture,
                    bool is_post,
                    ui::PageTransition page_transition_type,
                    bool is_redirect,
                    bool is_external_protocol,
                    bool is_main_frame);
   NavigationParams(const NavigationParams& other);
   void operator=(const NavigationParams& rhs);
 
   const GURL& url() const { return url_; }
   GURL& url() { return url_; }
   const content::Referrer& referrer() const { return referrer_; }
-  bool has_user_gesture() const { return has_user_gesture_; }
+  content::NavigationGesture gesture() const { return gesture_; }
   bool is_post() const { return is_post_; }
   ui::PageTransition transition_type() const { return transition_type_; }
   bool is_redirect() const { return is_redirect_; }
   bool is_external_protocol() const { return is_external_protocol_; }
   bool is_main_frame() const { return is_main_frame_; }
 
  private:
   void Assign(const NavigationParams& other);
 
   GURL url_;
   content::Referrer referrer_;
-  bool has_user_gesture_;
+  content::NavigationGesture gesture_;
   bool is_post_;
   ui::PageTransition transition_type_;
   bool is_redirect_;
   bool is_external_protocol_;
   bool is_main_frame_;
 };
 
 }  // namespace navigation_interception
 
 #endif  // COMPONENTS_NAVIGATION_INTERCEPTION_NAVIGATION_PARAMS_H_