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

components/navigation_interception/navigation_params.cc

Index: components/navigation_interception/navigation_params.cc
diff --git a/components/navigation_interception/navigation_params.cc b/components/navigation_interception/navigation_params.cc
index 54288f76c724c537460a84a629462c5587a06d47..789ad28668f57f89f121246b7a73e059864d08fb 100644
--- a/components/navigation_interception/navigation_params.cc
+++ b/components/navigation_interception/navigation_params.cc
@@ -12,7 +12,7 @@ NavigationParams::NavigationParams(const NavigationParams& 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,
@@ -20,13 +20,12 @@ NavigationParams::NavigationParams(const GURL& url,
                                    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);
@@ -35,7 +34,7 @@ void NavigationParams::operator=(const NavigationParams& 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();
@@ -44,4 +43,3 @@ void NavigationParams::Assign(const NavigationParams& other) {
 }
 
 }  // namespace navigation_interception
-