Logs different SaveCardPrompt histogram names depending on if user

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 1c64fa2bdb23318b75714fd9f050666c9530ab3f..8e014aba1c53526d16b6b7488c9b07883c709ca1 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -119189,6 +119189,20 @@ from previous Chrome versions.
   <affected-histogram name="Autofill.SaveCreditCardPrompt"/>
 </histogram_suffixes>
 
+<histogram_suffixes name="AutofillSaveCreditCardPromptPreviousUserDecision"
+    separator=".">
+  <suffix name="PreviouslyAccepted"
+      label="User had previously accepted save credit card prompt"/>
+  <suffix name="PreviouslyDenied"
+      label="User had previously denied save credit card prompt"/>
+  <affected-histogram name="Autofill.CreditCardInfoBar.Local"/>
+  <affected-histogram name="Autofill.CreditCardInfoBar.Server"/>
+  <affected-histogram name="Autofill.SaveCreditCardPrompt.Local.FirstShow"/>
+  <affected-histogram name="Autofill.SaveCreditCardPrompt.Local.Reshows"/>
+  <affected-histogram name="Autofill.SaveCreditCardPrompt.Upload.FirstShow"/>
+  <affected-histogram name="Autofill.SaveCreditCardPrompt.Upload.Reshows"/>
+</histogram_suffixes>
+
 <histogram_suffixes name="AutofillSaveCreditCardPromptShow" separator=".">
   <suffix name="FirstShow"
       label="first time prompt is shown for a single credit card submit"/>