Adding UMA stats.

chrome/common/password_generation_util.h

+// Copyright (c) 2012 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.
+
+#ifndef CHROME_COMMON_PASSWORD_GENERATION_UTIL_H_
+#define CHROME_COMMON_PASSWORD_GENERATION_UTIL_H_
+
+namespace password_generation {
+
+// Enumerates various events related to the password generation process.
+enum PasswordGenerationEvent {
+  // No Account creation form is detected.
+  NO_SIGN_UP_DETECTED,
+
+  // Account creation form is detected.
+  SIGN_UP_DETECTED,
+
+  // Password generation icon is shown inside the first password field.
+  ICON_SHOWN,
+
+  // Password generation bubble is shown after user clicks on the icon.
+  BUBBLE_SHOWN,
+
+  // Number of enum entries, used for UMA histogram reporting macros.
+  EVENT_ENUM_COUNT
+};
+
+// Wrapper to store the user interactions with the password generation bubble.
+struct PasswordGenerationActions {
+  // Whether the user has clicked on the learn more link.
+  bool learn_more_visited;
+
+  // Whether the user has accepted the generated password.
+  bool password_accepted;
+
+  // Whether the user has manually edited password entry.
+  bool password_edited;
+
+  // Whether the user has clicked on the regenerate button.
+  bool password_regenerated;
+
+  PasswordGenerationActions();
+  ~PasswordGenerationActions();
+};
+
+void LogUserActions(PasswordGenerationActions actions);
+
+void LogPasswordGenerationEvent(PasswordGenerationEvent event);
+
+}  // namespace password_generation
+
+#endif  // CHROME_COMMON_PASSWORD_GENERATION_UTIL_H_