Add UMA for the new generic permisison class

chrome/browser/content_settings/permission_context_uma_util.h

Index: chrome/browser/content_settings/permission_context_uma_util.h
diff --git a/chrome/browser/content_settings/permission_context_uma_util.h b/chrome/browser/content_settings/permission_context_uma_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..81deb5758e02a1e111168f5be9455fb237a324f7
--- /dev/null
+++ b/chrome/browser/content_settings/permission_context_uma_util.h
@@ -0,0 +1,25 @@
+// Copyright 2014 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_BROWSER_CONTENT_SETTINGS_PERMISSION_CONTEXT_UMA_UTIL_H_
+#define CHROME_BROWSER_CONTENT_SETTINGS_PERMISSION_CONTEXT_UMA_UTIL_H_
+
+#include "base/logging.h"
+#include "chrome/common/content_settings_types.h"
+
+// Provides a convenient way of logging UMA for permission related
+// operations.
+class PermissionContextUmaUtil {
+ public:
+  static void PermissionGranted(ContentSettingsType permission);
+  static void PermissionDenied(ContentSettingsType permission);
+  static void PermissionDismissed(ContentSettingsType permission);
+  static void PermissionIgnored(ContentSettingsType permission);
+  static void PermissionRequested(ContentSettingsType permission);
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(PermissionContextUmaUtil);
+};
+
+#endif  // CHROME_BROWSER_CONTENT_SETTINGS_PERMISSION_CONTEXT_UMA_UTIL_H_