Differentiate primary account compares on GAIA cookie presence.

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 351edb0eb2e4a8a1643f3e3f4e889d4c43452987..8f9185f4a19602c8164f8a05ab58052da2ad08a6 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -25456,11 +25456,12 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
-<histogram name="Signin.Reconciler.DifferentPrimaryAccounts">
+<histogram name="Signin.Reconciler.DifferentPrimaryAccounts"
+    enum="DifferentPrimaryAccounts">
   <owner>mlerman@chromium.org</owner>
   <summary>
-    After the first execution of the account reconciler, true if the token
-    service and cookie jar contained different primary accounts.
+    After execution of the account reconcilor, compares the primary account in
+    the token service to the primary GAIA account of the cookie jar.
   </summary>
 </histogram>
 
@@ -34310,6 +34311,13 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   <int value="20" label="SQLite Integrity Web Data Test"/>
 </enum>
 
+<enum name="DifferentPrimaryAccounts" type="int">
+  <int value="0" label="Primary Accounts the same"/>
+  <int value="1" label="(obsolete) Primary Accounts different"/>
+  <int value="2" label="No GAIA account in cookie jar"/>
+  <int value="3" label="Primary accounts present but different"/>
+</enum>
+
 <enum name="DllHash" type="int">
 <!-- Generated by chrome_elf/dll_hash_for_uma/dll_hash_for_uma_main.cc -->