Recording in UMA when a user interacted with an address form or a credit card form.

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 7b2a5f27b5ccf841eb7797fa4a71eaaf56520443..a2019d9844a7e522a83c5944cb90eac8026b3d21 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -1803,6 +1803,16 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="Autofill.FormEvents.Address" enum="AutofillFormEvent">
+  <owner>waltercacau@chromium.org</owner>
+  <summary>Autofill form events for address forms.</summary>
+</histogram>
+
+<histogram name="Autofill.FormEvents.CreditCard" enum="AutofillFormEvent">
+  <owner>waltercacau@chromium.org</owner>
+  <summary>Autofill form events for credit card forms.</summary>
+</histogram>
+
 <histogram name="Autofill.IsEnabled.PageLoad" enum="BooleanEnabled">
   <owner>isherman@chromium.org</owner>
   <summary>
@@ -42765,6 +42775,10 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   <int value="17" label="fp05cc03e1"/>
 </enum>
 
+<enum name="AutofillFormEvent" type="int">
+  <int value="1" label="Interacted once"/>
+</enum>
+
 <enum name="AutofillMacAddressBook" type="int">
   <int value="0" label="Showed popup entry"/>
   <int value="1" label="Selected popup entry"/>
@@ -58932,6 +58946,16 @@ To add a new entry, add it with any value and run test to compute valid value.
   <affected-histogram name="Renderer4.StartToFinish"/>
 </histogram_suffixes>
 
+<histogram_suffixes name="AutofillDataAvailability">
+  <suffix name="WithNoData" label="no autofill data"/>
+  <suffix name="WithOnlyServerData" label="only server autofill data"/>
+  <suffix name="WithOnlyLocalData" label="only local autofill data"/>
+  <suffix name="WithBothServerAndLocalData"
+      label="both server and local autofill data"/>
+  <affected-histogram name="Autofill.FormEvents.Address"/>
+  <affected-histogram name="Autofill.FormEvents.CreditCard"/>
+</histogram_suffixes>
+
 <histogram_suffixes name="AutofillServerExperiments">
   <suffix name="ar06" label="Acceptance ratio: 0.6"/>
   <suffix name="ar1" label="Acceptance ratio: 1.0"/>