Merge changes from topic 'pg-change-editing'

* changes:
  Hide reviewed checkbox when edit is loaded
  Add _editLoaded property to gr-change-view

polygerrit-ui/app/elements/change/gr-change-view/gr-change-view.html

@@ -516,6 +516,7 @@ limitations under the License.
             project-config="[[_projectConfig]]"
             selected-index="{{viewState.selectedFileIndex}}"
             diff-view-mode="{{viewState.diffMode}}"
+            edit-loaded="[[_editLoaded]]"
             num-files-shown="{{_numFilesShown}}"
             file-list-increment="{{_numFilesShown}}"></gr-file-list>
       </section>