Added web::NavigationContext::GetPageTransition.

ios/web/web_state/navigation_context_impl.h

Index: ios/web/web_state/navigation_context_impl.h
diff --git a/ios/web/web_state/navigation_context_impl.h b/ios/web/web_state/navigation_context_impl.h
index 2e3d3386c103656f529970d5479598c53d34d358..b9b090ad6b211cfbdaf6c9b79cc7b1398e0901ad 100644
--- a/ios/web/web_state/navigation_context_impl.h
+++ b/ios/web/web_state/navigation_context_impl.h
@@ -21,7 +21,8 @@ class NavigationContextImpl : public NavigationContext {
   // Response headers will ne null.
   static std::unique_ptr<NavigationContextImpl> CreateNavigationContext(
       WebState* web_state,
-      const GURL& url);
+      const GURL& url,
+      ui::PageTransition page_transition);
 
 #ifndef NDEBUG
   // Returns human readable description of this object.
@@ -31,6 +32,7 @@ class NavigationContextImpl : public NavigationContext {
   // NavigationContext overrides:
   WebState* GetWebState() override;
   const GURL& GetUrl() const override;
+  ui::PageTransition GetPageTransition() const override;
   bool IsSameDocument() const override;
   bool IsErrorPage() const override;
   net::HttpResponseHeaders* GetResponseHeaders() const override;
@@ -50,12 +52,14 @@ class NavigationContextImpl : public NavigationContext {
   NavigationContextImpl(
       WebState* web_state,
       const GURL& url,
+      ui::PageTransition page_transition,
       bool is_same_page,
       bool is_error_page,
       const scoped_refptr<net::HttpResponseHeaders>& response_headers);
 
   WebState* web_state_ = nullptr;
   GURL url_;
+  ui::PageTransition page_transition_;
   bool is_same_document_ = false;
   bool is_error_page_ = false;
   scoped_refptr<net::HttpResponseHeaders> response_headers_;