Turn //mojo/public/cpp/bindings and //mojo/public/cpp/system into components

mojo/public/cpp/bindings/lib/control_message_handler.h

Index: mojo/public/cpp/bindings/lib/control_message_handler.h
diff --git a/mojo/public/cpp/bindings/lib/control_message_handler.h b/mojo/public/cpp/bindings/lib/control_message_handler.h
index 543218416a0c984edc20b107e0d1bafc3d27d244..d26bbce1b3c30dff1099c784e125740fe59c13d1 100644
--- a/mojo/public/cpp/bindings/lib/control_message_handler.h
+++ b/mojo/public/cpp/bindings/lib/control_message_handler.h
@@ -9,7 +9,9 @@
 
 #include <string>
 
+#include "base/compiler_specific.h"
 #include "base/macros.h"
+#include "mojo/public/cpp/bindings/bindings_export.h"
 #include "mojo/public/cpp/bindings/lib/serialization_context.h"
 #include "mojo/public/cpp/bindings/message.h"
 
@@ -17,7 +19,8 @@ namespace mojo {
 namespace internal {
 
 // Handlers for request messages defined in interface_control_messages.mojom.
-class ControlMessageHandler : public MessageReceiverWithResponderStatus {
+class MOJO_CPP_BINDINGS_EXPORT ControlMessageHandler
+    : NON_EXPORTED_BASE(public MessageReceiverWithResponderStatus) {
  public:
   static bool IsControlMessage(const Message* message);