Migrates battery_status from content/renderer/ to WebKit/platform/

third_party/WebKit/Source/platform/testing/MessageLoopForMojo.h

Index: third_party/WebKit/Source/platform/testing/MessageLoopForMojo.h
diff --git a/third_party/WebKit/Source/platform/testing/MessageLoopForMojo.h b/third_party/WebKit/Source/platform/testing/MessageLoopForMojo.h
new file mode 100644
index 0000000000000000000000000000000000000000..3117ea02b836fd97f664b2f970c97556428cae89
--- /dev/null
+++ b/third_party/WebKit/Source/platform/testing/MessageLoopForMojo.h
@@ -0,0 +1,14 @@
+// Copyright 2016 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 MessageLoopForMojo_h
+#define MessageLoopForMojo_h
+
+#include "base/message_loop/message_loop.h"
+
+// This file exists just in order to allow unittests to include
+// "base/message_loop/message_loop.h" indirectly without adding a line of
+// "+base/message_loop" in their DEPS file.
+
+#endif // MessageLoopForMojo_h