Adding UMA stats.

chrome/browser/password_manager/password_manager.cc

Index: chrome/browser/password_manager/password_manager.cc
diff --git a/chrome/browser/password_manager/password_manager.cc b/chrome/browser/password_manager/password_manager.cc
index 7885d2196f61186cc4e0b259c66df86dbb61658c..550671d1391d3cd90f0de1862b81e9154723d134 100644
--- a/chrome/browser/password_manager/password_manager.cc
+++ b/chrome/browser/password_manager/password_manager.cc
@@ -4,12 +4,14 @@
 
 #include "chrome/browser/password_manager/password_manager.h"
 
+#include "base/metrics/histogram.h"
 #include "base/threading/platform_thread.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/password_manager/password_form_manager.h"
 #include "chrome/browser/password_manager/password_manager_delegate.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/password_generation_status.h"
 #include "chrome/common/autofill_messages.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/user_metrics.h"
@@ -239,6 +241,10 @@ void PasswordManager::OnPasswordFormsRendered(
   // given consent, either through previously accepting the infobar or by having
   // the browser generate the password.
   provisional_save_manager_->SubmitPassed();
+  if (provisional_save_manager_->HasGeneratedPassword())
+    UMA_HISTOGRAM_ENUMERATION("PasswordGeneration.EVENTS",

[Ilya Sherman, 2012/07/18 05:36:15]

This histogram name does not match the name in other places, where you use
"PasswordGeneration.Events".  In general, the best way to avoid such errors is
to only have one UMA_HISTOGRAM_ENUMERATION call site for each histogram name --
often in a helper function -- and to call that helper function with the enum
value that you want to log from the various places where you want to log the
event.  That way, you get compile-time checking that the histogram is uniformly
named.

[zysxqn, 2012/07/18 19:16:46]

Done.

+                              password_generation::SUBMITTED,
+                              password_generation::EVENT_ENUM_COUNT);
   if (provisional_save_manager_->IsNewLogin() &&
       !provisional_save_manager_->HasGeneratedPassword()) {
     delegate_->AddSavePasswordInfoBarIfPermitted(