Skip filling the trigger element if there's no value to fill

Context given in
https://bugs.chromium.org/p/chromium/issues/detail?id=1500596#c1

(cherry picked from commit 44c7f68)

Bug: 1500596
Change-Id: I5ddb5d3be54d4345afd336122cc5e57c11a09a73
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5019400
Auto-Submit: Jihad Hanna <jihadghanna@google.com>
Commit-Queue: Jihad Hanna <jihadghanna@google.com>
Reviewed-by: Dominic Battre <battre@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1222854}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5017948
Reviewed-by: Stephen McGruer <smcgruer@chromium.org>
Commit-Queue: Prudhvikumar Bommana <pbommana@google.com>
Cr-Commit-Position: refs/branch-heads/6045@{#1306}
Cr-Branched-From: 905e8bd-refs/heads/main@{#1204232}

components/autofill/content/renderer/form_autofill_util.cc

@@ -1108,15 +1108,15 @@ bool ShouldSkipFillField(const FormFieldData& field,
     return true;
   }
 
-  if (element == trigger_element) {
-    return false;
-  }
-
   // Skip if there is no value to fill.
   if (field.value.empty() || !field.is_autofilled) {
     return true;
   }
 
+  if (element == trigger_element) {
+    return false;
+  }
+
   // Skip filling previously autofilled fields unless autofill is instructed to
   // override it.
   if (element.IsAutofilled() && !field.force_override) {