Starting a refactor to allow adding metrics on upload.

chrome/browser/android/feature_utilities.h

+// 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_ANDROID_FEATURE_UTILITIES_H_
+#define CHROME_BROWSER_ANDROID_FEATURE_UTILITIES_H_
+
+#include <jni.h>
+
+namespace chrome {
+namespace android {
+
+enum RunningModeHistogram {
+  RUNNING_MODE_DOCUMENT_MODE,
+  RUNNING_MODE_TABBED_MODE,
+  RUNNING_MODE_MAX
+};
+
+RunningModeHistogram GetDocumentModeValue();
+
+} // namespace android
+} // namespace chrome
+
+bool RegisterFeatureUtilities(JNIEnv* env);
+
+#endif  // CHROME_BROWSER_ANDROID_FEATURE_UTILITIES_H_