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

mojo/public/cpp/bindings/pipe_control_message_handler.h

Index: mojo/public/cpp/bindings/pipe_control_message_handler.h
diff --git a/mojo/public/cpp/bindings/pipe_control_message_handler.h b/mojo/public/cpp/bindings/pipe_control_message_handler.h
index b387b061cfbeda02dfa0114ae606612030b4f804..9428c1b2d8adc3435e196b72f575f195fa4d10b7 100644
--- a/mojo/public/cpp/bindings/pipe_control_message_handler.h
+++ b/mojo/public/cpp/bindings/pipe_control_message_handler.h
@@ -5,7 +5,9 @@
 #ifndef MOJO_PUBLIC_CPP_BINDINGS_PIPE_CONTROL_MESSAGE_HANDLER_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_PIPE_CONTROL_MESSAGE_HANDLER_H_
 
+#include "base/compiler_specific.h"
 #include "base/macros.h"
+#include "mojo/public/cpp/bindings/bindings_export.h"
 #include "mojo/public/cpp/bindings/interface_id.h"
 #include "mojo/public/cpp/bindings/lib/serialization_context.h"
 #include "mojo/public/cpp/bindings/message.h"
@@ -15,7 +17,8 @@ namespace mojo {
 class PipeControlMessageHandlerDelegate;
 
 // Handler for messages defined in pipe_control_messages.mojom.
-class PipeControlMessageHandler : public MessageReceiver {
+class MOJO_CPP_BINDINGS_EXPORT PipeControlMessageHandler
+    : NON_EXPORTED_BASE(public MessageReceiver) {
  public:
   explicit PipeControlMessageHandler(
       PipeControlMessageHandlerDelegate* delegate);