Update Chrome Upstream flow to reflect new UI mocks

tools/metrics/histograms/enums.xml

Index: tools/metrics/histograms/enums.xml
diff --git a/tools/metrics/histograms/enums.xml b/tools/metrics/histograms/enums.xml
index 3b4c0c56e7bb66cc408dd91c29fbe00e8286af48..dd3dc0304f23fc54d1b57e0c276aa4fea5389921 100644
--- a/tools/metrics/histograms/enums.xml
+++ b/tools/metrics/histograms/enums.xml
@@ -23281,6 +23281,7 @@ uploading your change for review.  These are checked by presubmit scripts.
   <int value="-88273414" label="ContentSuggestionsShowSummary:enabled"/>
   <int value="-86788587" label="allow-autofill-sync-credential"/>
   <int value="-80353187" label="disable-display-color-calibration"/>
+  <int value="-80222766" label="AutofillUpstreamShowNewUi:disabled"/>
   <int value="-78035185" label="custom_summary"/>
   <int value="-77872983" label="BookmarkAppsMac:disabled"/>
   <int value="-76631048" label="disable-offline-auto-reload-visible-only"/>
@@ -23641,6 +23642,7 @@ from previous Chrome versions.
   <int value="1126061778" label="CaptureThumbnailOnLoadFinished:enabled"/>
   <int value="1127183523" label="PassiveEventListenersDueToFling:enabled"/>
   <int value="1127427821" label="OmniboxEntitySuggestions:disabled"/>
+  <int value="1127900329" label="AutofillUpstreamShowNewUi:enabled"/>
   <int value="1129888794" label="ash-touch-hud"/>
   <int value="1133635187" label="force-gpu-rasterization"/>
   <int value="1139226452" label="enable-nacl-debug"/>