Adding UMA stats.

chrome/common/password_generation_util.cc

Index: chrome/common/password_generation_util.cc
diff --git a/chrome/common/password_generation_util.cc b/chrome/common/password_generation_util.cc
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+++ b/chrome/common/password_generation_util.cc
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+// Copyright (c) 2011 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/common/password_generation_util.h"
+
+#include "base/metrics/histogram.h"
+
+namespace {
+
+// Enumerates user actions after password generation bubble is shown.
+enum UserAction {
+  // User closes the bubble without any meaningful actions (e.g. use backspace
+  // key, close the bubble, click outside the bubble, etc).
+  IGNORE_FEATURE,
+
+  // User navigates to the learn more page. Note that in the current
+  // implementation this will result in closing the bubble so this action
+  // doesn't overlap with the following two actions.
+  LEARN_MORE,
+
+  // User accepts the generated password without manually editing it (but
+  // including changing it through the regenerate button).
+  ACCEPT_ORIGINAL_PASSWORD,
+
+  // User accepts the gererated password after manually editing it.
+  ACCEPT_AFTER_EDITING,
+
+  // Number of enum entries, used for UMA histogram reporting macros.
+  ACTION_ENUM_COUNT
+};
+
+}  // anonymous namespace
+
+namespace password_generation {
+
+PasswordGenerationActions::PasswordGenerationActions()
+    : learn_more_visited(false),
+      password_accepted(false),
+      password_edited(false),
+      password_regenerated(false) {
+}
+
+PasswordGenerationActions::~PasswordGenerationActions() {
+}
+
+void LogUserActions(PasswordGenerationActions actions) {
+  UserAction action = IGNORE_FEATURE;
+  if (actions.password_accepted) {
+    if (actions.password_edited)
+      action = ACCEPT_AFTER_EDITING;
+    else
+      action = ACCEPT_ORIGINAL_PASSWORD;
+  } else if (actions.learn_more_visited) {
+    action = LEARN_MORE;
+  }
+  UMA_HISTOGRAM_ENUMERATION("PasswordGeneration.UserActions",
+                            action, ACTION_ENUM_COUNT);
+}
+
+void LogPasswordGenerationEvent(PasswordGenerationEvent event) {
+  UMA_HISTOGRAM_ENUMERATION("PasswordGeneration.Event",
+                            event, EVENT_ENUM_COUNT);
+}
+
+}  // namespace password_generation