Credential Manager API pops up an auto-signin toast.

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index c27f70c7ac941b1091fb3578b7f10d4579d8e3cc..5bf735c931d9b568f640fb29859f02058d14e5d9 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -54309,6 +54309,7 @@ To add a new entry, add it with any value and run test to compute valid value.
       label="Opened automatically / Confirming generated password saved"/>
   <int value="5"
       label="Opened automatically / Offering a credential to choose"/>
+  <int value="6" label="Opened automatically / Auto-signin toast"/>
 </enum>
 
 <enum name="PasswordGenerationEvent" type="int">
@@ -54792,6 +54793,7 @@ To add a new entry, add it with any value and run test to compute valid value.
   <int value="8" label="Clicked on a credential"/>
   <int value="9" label="Clicked collect URL"/>
   <int value="10" label="Clicked do not collect URL"/>
+  <int value="11" label="Auto-signin toast timeout"/>
 </enum>
 
 <enum name="PeerConnectionCounters" type="int">