Fix LoadDataWithBaseUrlTest#testloadDataWithBaseUrlCallsOnPageStarted with PlzNavigate.

components/navigation_interception/navigation_params.h

Index: components/navigation_interception/navigation_params.h
diff --git a/components/navigation_interception/navigation_params.h b/components/navigation_interception/navigation_params.h
index 3417816590e2fb4fcf7b78e83f1c776fdf086b5c..c42637b22e3e7ac03d7a098b3b60baa5cea9678e 100644
--- a/components/navigation_interception/navigation_params.h
+++ b/components/navigation_interception/navigation_params.h
@@ -21,7 +21,8 @@ class NavigationParams {
                    ui::PageTransition page_transition_type,
                    bool is_redirect,
                    bool is_external_protocol,
-                   bool is_main_frame);
+                   bool is_main_frame,
+                   const GURL& base_url_for_data_url);
   NavigationParams(const NavigationParams& other);
   void operator=(const NavigationParams& rhs);
 
@@ -34,6 +35,7 @@ class NavigationParams {
   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_; }
+  const GURL& base_url_for_data_url() const { return base_url_for_data_url_; }
 
  private:
   void Assign(const NavigationParams& other);
@@ -46,6 +48,7 @@ class NavigationParams {
   bool is_redirect_;
   bool is_external_protocol_;
   bool is_main_frame_;
+  GURL base_url_for_data_url_;
 };
 
 }  // namespace navigation_interception