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

components/navigation_interception/navigation_params.cc

 // 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.
 
 #include "components/navigation_interception/navigation_params.h"
 
 namespace navigation_interception {
 
 NavigationParams::NavigationParams(const NavigationParams& other) {
   Assign(other);
 }
 
 NavigationParams::NavigationParams(const GURL& url,
                                    const 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)
     : url_(url),
       referrer_(referrer),
-      has_user_gesture_(has_user_gesture),
+      gesture_(gesture),
       is_post_(is_post),
       transition_type_(transition_type),
       is_redirect_(is_redirect),
       is_external_protocol_(is_external_protocol),
-      is_main_frame_(is_main_frame) {
-}
+      is_main_frame_(is_main_frame) {}
 
 void NavigationParams::operator=(const NavigationParams& rhs) {
   Assign(rhs);
 }
 
 void NavigationParams::Assign(const NavigationParams& other) {
   url_ = other.url();
   referrer_ = other.referrer();
-  has_user_gesture_ = other.has_user_gesture();
+  gesture_ = other.gesture();
   is_post_ = other.is_post();
   transition_type_ = other.transition_type();
   is_redirect_ = other.is_redirect();
   is_external_protocol_ = other.is_external_protocol();
   is_main_frame_ = other.is_main_frame();
 }
 
 }  // namespace navigation_interception
-