Straightens outs DEPS in mojo/common

mojo/message_pump/mojo_message_pump_export.h

Index: mojo/message_pump/mojo_message_pump_export.h
diff --git a/mojo/message_pump/mojo_message_pump_export.h b/mojo/message_pump/mojo_message_pump_export.h
new file mode 100644
index 0000000000000000000000000000000000000000..f8c1864b018f8512b2c97d2e76d800c2328bb60e
--- /dev/null
+++ b/mojo/message_pump/mojo_message_pump_export.h
@@ -0,0 +1,32 @@
+// Copyright 2015 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 MOJO_MESSAGE_PUMP_MOJO_MESSAGE_PUMP_EXPORT_H_
+#define MOJO_MESSAGE_PUMP_MOJO_MESSAGE_PUMP_EXPORT_H_
+
+#if defined(COMPONENT_BUILD)
+
+#if defined(WIN32)
+
+#if defined(MOJO_MESSAGE_PUMP_IMPLEMENTATION)
+#define MOJO_MESSAGE_PUMP_EXPORT __declspec(dllexport)
+#else
+#define MOJO_MESSAGE_PUMP_EXPORT __declspec(dllimport)
+#endif
+
+#else  // !defined(WIN32)
+
+#if defined(MOJO_MESSAGE_PUMP_IMPLEMENTATION)
+#define MOJO_MESSAGE_PUMP_EXPORT __attribute__((visibility("default")))
+#else
+#define MOJO_MESSAGE_PUMP_EXPORT
+#endif
+
+#endif  // defined(WIN32)
+
+#else  // !defined(COMPONENT_BUILD)
+#define MOJO_MESSAGE_PUMP_EXPORT
+#endif
+
+#endif  // MOJO_MESSAGE_PUMP_MOJO_MESSAGE_PUMP_EXPORT_H_