Fix file browser rspecs

Fixed the rspecs with the blob refactor FF enabled

spec/features/projects/files/user_browses_files_spec.rb

@@ -2,7 +2,7 @@
 
 require "spec_helper"
 
-RSpec.describe "User browses files" do
+RSpec.describe "User browses files", :js do
   include RepoHelpers
 
   let(:fork_message) do
@@ -340,32 +340,37 @@ RSpec.describe "User browses files" do
     let(:newrev) { project.repository.commit('master').sha }
 
     before do
-      stub_feature_flags(refactor_blob_viewer: false) # This stub will be removed in https://gitlab.com/gitlab-org/gitlab/-/issues/350456
       create_file_in_repo(project, 'master', 'master', filename, 'Test file')
       path = File.join('master', filename)
 
       visit(project_blob_path(project, path))
+      wait_for_requests
     end
 
-    it "shows a raw file content" do
-      click_link("Open raw")
+    it "shows raw file content in a new tab" do
+      new_tab = window_opened_by {click_link 'Open raw'}
 
-      expect(source).to eq("") # Body is filled in by gitlab-workhorse
+      within_window new_tab do
+        expect(page).to have_content("Test file")
+      end
     end
   end
 
   context "when browsing a raw file" do
     before do
-      stub_feature_flags(refactor_blob_viewer: false) # This stub will be removed in https://gitlab.com/gitlab-org/gitlab/-/issues/350456
-      path = File.join(RepoHelpers.sample_commit.id, RepoHelpers.sample_blob.path)
+      visit(tree_path_root_ref)
+      wait_for_requests
 
-      visit(project_blob_path(project, path))
+      click_link(".gitignore")
+      wait_for_requests
     end
 
-    it "shows a raw file content" do
-      click_link("Open raw")
+    it "shows raw file content in a new tab" do
+      new_tab = window_opened_by {click_link 'Open raw'}
 
-      expect(source).to eq("") # Body is filled in by gitlab-workhorse
+      within_window new_tab do
+        expect(page).to have_content("*.rbc")
+      end
     end
   end
 end