Let MetricsService know about some Android Activities

chrome/browser/android/activity_type_ids_definitions.h

Index: chrome/browser/android/activity_type_ids_definitions.h
diff --git a/chrome/browser/android/activity_type_ids_definitions.h b/chrome/browser/android/activity_type_ids_definitions.h
new file mode 100644
index 0000000000000000000000000000000000000000..0152125d6f651e924b29bbe8283ab77f232d761e
--- /dev/null
+++ b/chrome/browser/android/activity_type_ids_definitions.h
@@ -0,0 +1,16 @@
+// 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.
+
+// This file is explicitly not #ifdefed because it gets included twice in C++ to
+// create the two different Enums.
+
+#ifndef DEFINE_ACTIVITY_TYPE_ID
+#error "DEFINE_ACTIVITY_TYPE_ID should be defined before including this file"
+#endif  // DEFINE_ACTIVITY_TYPE_ID
+
+// Define Activities we are interested in tracking.
+DEFINE_ACTIVITY_TYPE_ID(NONE, 0)
+DEFINE_ACTIVITY_TYPE_ID(MAIN, 1)
+DEFINE_ACTIVITY_TYPE_ID(FULLSCREEN, 2)
+DEFINE_ACTIVITY_TYPE_ID(MAX_VALUE, 3)