[Autofill] Convert wallet addresses to local autofill profiles.

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 dcc643e3ab9e1387a689f9f4ad7a4f8caf930877..cfef67b05cf5a293ea90544992a8ddf97a0ecbfa 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -3824,6 +3824,15 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Autofill.WalletAddressConversionType"
+    enum="AutofillWalletAddressConversionType">
+  <owner>sebsg@chromium.org</owner>
+  <summary>
+    Tracks how the different wallet addresses are converted to local autofill
+    profiles.
+  </summary>
+</histogram>
+
 <histogram name="BackgroundMode.BackgroundApplicationsCount">
   <owner>atwilson@chromium.org</owner>
   <owner>mvanouwerkerk@chromium.org</owner>
@@ -78969,6 +78978,11 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="11" label="User edited autofilled field (once)"/>
 </enum>
 
+<enum name="AutofillWalletAddressConversionType" type="int">
+  <int value="0" label="Merged with existing local profile"/>
+  <int value="1" label="Added as a new local profile"/>
+</enum>
+
 <enum name="AutoLaunchState" type="int">
   <int value="0" label="AUTO_LAUNCH_NONE"/>
   <int value="1" label="AUTO_LAUNCH_BACKGROUND"/>