[Password Manager] Add UMA stats to track interaction with synced accounts.

chrome/browser/ui/passwords/password_manager_presenter.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/passwords/password_manager_presenter.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
+#include "base/metrics/user_metrics_action.h"
 #include "base/prefs/pref_service.h"
+#include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "chrome/browser/password_manager/password_manager_util.h"
 #include "chrome/browser/password_manager/password_store_factory.h"
+#include "chrome/browser/password_manager/sync_metrics.h"
 #include "chrome/browser/ui/passwords/password_ui_view.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/url_constants.h"
 #include "components/autofill/core/common/password_form.h"
 #include "components/password_manager/core/common/password_manager_pref_names.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 
 using password_manager::PasswordStore;
 
@@ skipping 94 matching lines @@
     NOTREACHED();
     return;
   }
   if (IsAuthenticationRequired()) {
     if (password_manager_util::AuthenticateUser(
         password_view_->GetNativeWindow()))
       last_authentication_time_ = base::TimeTicks::Now();
     else
       return;
   }
+
+  if (password_manager_sync_metrics::IsPasswordSyncAccountCredential(
+          password_view_->GetProfile(),
+          UTF16ToUTF8(password_list_[index]->username_value),
+          password_list_[index]->signon_realm)) {
+    content::RecordAction(
+        base::UserMetricsAction("PasswordManager_SyncCredentialShown"));
+  }
+
   // Call back the front end to reveal the password.
   password_view_->ShowPassword(index, password_list_[index]->password_value);
 #endif
 }
 
 const autofill::PasswordForm* PasswordManagerPresenter::GetPassword(
     size_t index) {
   if (index >= password_list_.size()) {
     // |index| out of bounds might come from a compromised renderer, don't let
     // it crash the browser. http://crbug.com/362054
@@ skipping 82 matching lines @@
 }
 
 void PasswordManagerPresenter::PasswordExceptionListPopulater::
     OnGetPasswordStoreResults(
         const std::vector<autofill::PasswordForm*>& results) {
   page_->password_exception_list_.clear();
   page_->password_exception_list_.insert(page_->password_exception_list_.end(),
                                          results.begin(), results.end());
   page_->SetPasswordExceptionList();
 }