[Autofill] Enable Dynamic Forms by default.

Change-Id: I6906fc6f60b02f6b3cc7a07c6884b4867fb3888a
Reviewed-on: https://chromium-review.googlesource.com/c/1285520Reviewed-by: Fabio Tirelo <ftirelo@chromium.org>
Commit-Queue: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609564}

components/autofill/core/common/autofill_features.cc

@@ -67,7 +67,7 @@ const base::Feature kAutofillDownstreamUseGooglePayBrandingOniOS{
 
 // Controls whether Autofill attemps to fill dynamically changing forms.
 const base::Feature kAutofillDynamicForms{"AutofillDynamicForms",
-                                          base::FEATURE_DISABLED_BY_DEFAULT};
+                                          base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Controls whether the server credit cards are saved only in the ephemeral
 // account-based storage, instead of the persistent local storage.