Move constants in guest view from chrome to extensions.

chrome/browser/guest_view/guest_view_constants.cc

Index: chrome/browser/guest_view/guest_view_constants.cc
diff --git a/chrome/browser/guest_view/guest_view_constants.cc b/chrome/browser/guest_view/guest_view_constants.cc
deleted file mode 100644
index b12c41c6d3a80aa618ec5961b7f6079133d50614..0000000000000000000000000000000000000000
--- a/chrome/browser/guest_view/guest_view_constants.cc
+++ /dev/null
@@ -1,23 +0,0 @@
-// 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.
-
-#include "chrome/browser/guest_view/guest_view_constants.h"
-
-namespace guestview {
-
-// Parameters/properties on events.
-const char kIsTopLevel[] = "isTopLevel";
-const char kReason[] = "reason";
-const char kUrl[] = "url";
-const char kUserGesture[] = "userGesture";
-
-// Initialization parameters.
-const char kParameterApi[] = "api";
-const char kParameterInstanceId[] = "instanceId";
-
-// Other.
-const char kGuestViewManagerKeyName[] = "guest_view_manager";
-const int kInstanceIDNone = 0;
-
-}  // namespace guestview