Add FirstRun.SearchEngineBubble UMA histogram counts.

chrome/browser/ui/gtk/first_run_bubble.cc

Index: chrome/browser/ui/gtk/first_run_bubble.cc
diff --git a/chrome/browser/ui/gtk/first_run_bubble.cc b/chrome/browser/ui/gtk/first_run_bubble.cc
index d1bbeb6739a65b06cd3b7b9d19a7a363e0d12aaf..badc294034d6fb34693e0b136fb406e813a68249 100644
--- a/chrome/browser/ui/gtk/first_run_bubble.cc
+++ b/chrome/browser/ui/gtk/first_run_bubble.cc
@@ -7,7 +7,9 @@
 #include <gtk/gtk.h>
 
 #include "base/i18n/rtl.h"
+#include "base/metrics/histogram.h"
 #include "base/utf_string_conversions.h"
+#include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/search_engines/util.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/gtk/theme_service_gtk.h"
@@ -31,6 +33,10 @@ const int kInterLineSpacing = 5;
 void FirstRunBubble::Show(Profile* profile,
                           GtkWidget* anchor,
                           const gfx::Rect& rect) {
+  HISTOGRAM_ENUMERATION("FirstRun.SearchEngineBubble",
+                        first_run::FIRST_RUN_BUBBLE_SHOWN,
+                        first_run::NUM_FIRST_RUN_BUBBLE_METRICS);
+
   new FirstRunBubble(profile, anchor, rect);
 }
 
@@ -83,6 +89,10 @@ void FirstRunBubble::HandleDestroy(GtkWidget* sender) {
 }
 
 void FirstRunBubble::HandleChangeLink(GtkWidget* sender) {
+  HISTOGRAM_ENUMERATION("FirstRun.SearchEngineBubble",
+                        first_run::FIRST_RUN_BUBBLE_CHANGE_SEARCH_INVOKED,
+                        first_run::NUM_FIRST_RUN_BUBBLE_METRICS);
+
   // Get |profile_|'s browser before closing the bubble, which deletes |this|.
   Browser* browser = BrowserList::GetLastActiveWithProfile(profile_);
   bubble_->Close();