Add metrics for search engine promo and search widget

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 fa74d34a3660ccd68011df6933550b8012829403..fc16d51f184be5b87f4e0968a016b683b37b4f99 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -65466,6 +65466,114 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="SearchEnginePromo.ExistingDevices.FirstSearchEngineListed"
+    enum="OmniboxSearchEngineType">
+  <owner>yusufo@chromium.org</owner>
+  <summary>
+    The first search engine listed in the options for search engine promo. This
+    is a dialog prompting the user to pick a default search engine. The dialog
+    was shown on a device that had Chrome before it was first introduced.
+  </summary>
+</histogram>
+
+<histogram name="SearchEnginePromo.ExistingDevices.SearchEngineSelection"
+    enum="OmniboxSearchEngineType">
+  <owner>yusufo@chromium.org</owner>
+  <summary>
+    The search engine selected by the user from the search engine promo. This is
+    a dialog prompting the user to pick a default search engine. The dialog was
+    shown on a device that had Chrome before it was first introduced.
+  </summary>
+</histogram>
+
+<histogram name="SearchEnginePromo.ExistingDevices.SecondSearchEngineListed"
+    enum="OmniboxSearchEngineType">
+  <owner>yusufo@chromium.org</owner>
+  <summary>
+    The second search engine listed in the options for search engine promo. This
+    is a dialog prompting the user to pick a default search engine. The dialog
+    was shown on a device that had Chrome before it was first introduced.
+  </summary>
+</histogram>
+
+<histogram name="SearchEnginePromo.ExistingDevices.ThirdSearchEngineListed"
+    enum="OmniboxSearchEngineType">
+  <owner>yusufo@chromium.org</owner>
+  <summary>
+    The third search engine listed in the options for search engine promo. This
+    is a dialog prompting the user to pick a default search engine. The dialog
+    was shown on a device that had Chrome before it was first introduced.
+  </summary>
+</histogram>
+
+<histogram name="SearchEnginePromo.NewDevices.FirstSearchEngineListed"
+    enum="OmniboxSearchEngineType">
+  <owner>yusufo@chromium.org</owner>
+  <summary>
+    The first search engine listed in the options for search engine promo. This
+    is a dialog prompting the user to pick a default search engine. The dialog
+    was shown on a device that used Chrome after it was first introduced.
+  </summary>
+</histogram>
+
+<histogram name="SearchEnginePromo.NewDevices.PartnershipSearchEngineUsed"
+    enum="OmniboxSearchEngineType">
+  <owner>yusufo@chromium.org</owner>
+  <summary>
+    The search engine used for a search performed under partnership after the
+    search engine promo dialog was shown. This is a dialog prompting the user to
+    pick a default search engine.
+  </summary>
+</histogram>
+
+<histogram name="SearchEnginePromo.NewDevices.PartnershipSearchPerformed"
+    enum="SearchEntryPoint">
+  <owner>yusufo@chromium.org</owner>
+  <summary>
+    The entry point used for a search performed under partnership after the
+    search engine promo dialog was shown. This is a dialog prompting the user to
+    pick a default search engine.
+  </summary>
+</histogram>
+
+<histogram name="SearchEnginePromo.NewDevices.SearchEngineSelection"
+    enum="OmniboxSearchEngineType">
+  <owner>yusufo@chromium.org</owner>
+  <summary>
+    The search engine selected by the user from the search engine promo. This is
+    a dialog prompting the user to pick a default search engine. The dialog was
+    shown on a device that used Chrome after it was first introduced.
+  </summary>
+</histogram>
+
+<histogram name="SearchEnginePromo.NewDevices.SecondSearchEngineListed"
+    enum="OmniboxSearchEngineType">
+  <owner>yusufo@chromium.org</owner>
+  <summary>
+    The second search engine listed in the options for search engine promo. This
+    is a dialog prompting the user to pick a default search engine. The dialog
+    was shown on a device that used Chrome after it was first introduced.
+  </summary>
+</histogram>
+
+<histogram name="SearchEnginePromo.NewDevices.ThirdSearchEngineListed"
+    enum="OmniboxSearchEngineType">
+  <owner>yusufo@chromium.org</owner>
+  <summary>
+    The third search engine listed in the options for search engine promo. This
+    is a dialog prompting the user to pick a default search engine. The dialog
+    was shown on a device that used Chrome after it was first introduced.
+  </summary>
+</histogram>
+
+<histogram name="SearchWidget.UseAndDeviceInfo" enum="SearchWidgetUseInfo">
+  <owner>yusufo@chromium.org</owner>
+  <summary>
+    The current state for search widget use and whether the device is a
+    partnership device related with the Android Search Widget.
+  </summary>
+</histogram>
+
 <histogram
     name="Security.HTTPBad.NavigationStartedAfterUserWarnedAboutSensitiveInput"
     units="ms">