[Android] Update search widget metric enums.

BUG=829068

Change-Id: I8966cf06a31c12d50804c810a6b85f9a53b9bf59
Reviewed-on: https://chromium-review.googlesource.com/996587
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Reviewed-by: Yusuf Ozuysal <yusufo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548551}

tools/metrics/histograms/enums.xml

@@ -39786,10 +39786,24 @@ Called by update_net_trust_anchors.py.-->
 </enum>
 
 <enum name="SearchWidgetUseInfo">
-  <int value="0" label="Present in partnership device"/>
-  <int value="1" label="Not present in partnership device"/>
-  <int value="2" label="Present in non-partnership device"/>
-  <int value="3" label="Not present in non-partnership device"/>
+  <int value="0" label="defunct Present in partnership device"/>
+  <int value="1" label="defunct Not present in partnership device"/>
+  <int value="2" label="defunct Present in non-partnership device"/>
+  <int value="3" label="defunct Not present in non-partnership device"/>
+  <int value="4" label="Present in partnership device (Always available)"/>
+  <int value="5"
+      label="Present in partnership device (Added after first start)"/>
+  <int value="6" label="Not Present in partnership device (Never present)"/>
+  <int value="7"
+      label="Not Present in partnership device (Removed after first start)"/>
+  <int value="8" label="Present in non-partnership device (Always available)"/>
+  <int value="9"
+      label="Present in non-partnership device (Added after first start)"/>
+  <int value="10"
+      label="Not Present in non-partnership device (Never present)"/>
+  <int value="11"
+      label="Not Present in non-partnership device (Removed after first
+             start)"/>
 </enum>
 
 <enum name="SecurityInterstitialDecision">