Convert base::closure in chrome/browser/autofill

This CL converts base::Closure to base::RepeatingClosure.
This is a code health CL, should not cause any behavior
change.

With this CL, there will be no base::Callback,
or base::Closure or base::bind in autofill/

Bug: 1007635
Change-Id: I2d387ba822917dc080deeda93b2511d623b37beb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2272610
Auto-Submit: Xida Chen <xidachen@chromium.org>
Commit-Queue: Maxim Kolosovskiy <kolos@chromium.org>
Reviewed-by: Maxim Kolosovskiy <kolos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#784349}

chrome/browser/autofill/content_autofill_driver_browsertest.cc

@@ -152,11 +152,11 @@ class ContentAutofillDriverBrowserTest : public InProcessBrowserTest,
     run_loop.Run();
   }
 
-  void OnGetElementFormAndFieldData(const base::Closure& done_callback,
+  void OnGetElementFormAndFieldData(base::RepeatingClosure done_callback,
                                     size_t expected_form_size,
                                     const autofill::FormData& form_data,
                                     const autofill::FormFieldData& form_field) {
-    done_callback.Run();
+    std::move(done_callback).Run();
     if (expected_form_size) {
       ASSERT_EQ(form_data.fields.size(), expected_form_size);
       ASSERT_FALSE(form_field.label.empty());