Gallery: replace paper-input of rename field with HTMLInputElement.

ui/file_manager/integration_tests/remote_call.js

Index: ui/file_manager/integration_tests/remote_call.js
diff --git a/ui/file_manager/integration_tests/remote_call.js b/ui/file_manager/integration_tests/remote_call.js
index 0e51712562d68cc2b596b5b63c5a84bc3de2f506..42bd75641969a9dcff767aade48f51e3fc892bb0 100644
--- a/ui/file_manager/integration_tests/remote_call.js
+++ b/ui/file_manager/integration_tests/remote_call.js
@@ -432,7 +432,7 @@ RemoteCallGallery.prototype.waitForSlideImage =
   return repeatUntil(function() {
     var query = '.gallery[mode="slide"] .content canvas.fullres';
     return Promise.all([
-        this.waitForElement(windowId, '.filename-spacer > paper-input'),
+        this.waitForElement(windowId, '.filename-spacer input'),
         this.waitForElement(windowId, query)
     ]).then(function(args) {
       var nameBox = args[0];