Adding UMA stats.

chrome/renderer/autofill/password_generation_manager.cc

Index: chrome/renderer/autofill/password_generation_manager.cc
diff --git a/chrome/renderer/autofill/password_generation_manager.cc b/chrome/renderer/autofill/password_generation_manager.cc
index 7e402e2e5e2dadaa116935d02602de58b73bffe0..71d1bcc3cb33c7401d2ac3ae277d728e8e61df37 100644
--- a/chrome/renderer/autofill/password_generation_manager.cc
+++ b/chrome/renderer/autofill/password_generation_manager.cc
@@ -5,6 +5,7 @@
 #include "chrome/renderer/autofill/password_generation_manager.h"
 
 #include "base/logging.h"
+#include "base/metrics/histogram.h"
 #include "chrome/common/autofill_messages.h"
 #include "chrome/common/net/gaia/gaia_urls.h"
 #include "content/public/renderer/render_view.h"
@@ -115,6 +116,7 @@ void PasswordGenerationManager::DidFinishLoad(WebKit::WebFrame* frame) {
     std::vector<WebKit::WebInputElement> passwords;
     if (GetAccountCreationPasswordFields(forms[i], &passwords)) {
       DVLOG(2) << "Account creation form detected";
+      UMA_HISTOGRAM_COUNTS("PasswordGeneration.AccountCreationFormDetected", 1);
       passwords_ = passwords;
       account_creation_form_origin_ = password_form->origin;
       MaybeShowIcon();
@@ -227,6 +229,7 @@ void PasswordGenerationManager::MaybeShowIcon() {
     if (*it == account_creation_form_origin_) {
       passwords_[0].decorationElementFor(this).setAttribute("style",
                                                             "display:block");
+      UMA_HISTOGRAM_COUNTS("PasswordGeneration.PasswordGenerationIconShown", 1);
       return;
     }
   }