Allow multiple base::MessagePumpForUI instances to be created simultanenously on Windows.

base/win/message_window.h

Index: base/win/message_window.h
diff --git a/remoting/host/win/message_window.h b/base/win/message_window.h
similarity index 82%
rename from remoting/host/win/message_window.h
rename to base/win/message_window.h
index ecd2a36276b597b6aa6dadc19da6cba9fecdcbcb..9cc4573bfa71d2eb6179a38a21d44bf5a6e215cf 100644
--- a/remoting/host/win/message_window.h
+++ b/base/win/message_window.h
@@ -2,25 +2,26 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef REMOTING_HOST_WIN_MESSAGE_WINDOW_H_
-#define REMOTING_HOST_WIN_MESSAGE_WINDOW_H_
+#ifndef BASE_WIN_MESSAGE_WINDOW_H_
+#define BASE_WIN_MESSAGE_WINDOW_H_
 
 #include <windows.h>
 
 #include <string>
 
+#include "base/base_export.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/threading/non_thread_safe.h"
 
-namespace remoting {
+namespace base {
 namespace win {
 
 // Implements a message-only window.
-class MessageWindow : base::NonThreadSafe {
+class BASE_EXPORT MessageWindow : base::NonThreadSafe {
  public:
   // Handles incoming window messages.
-  class Delegate {
+  class BASE_EXPORT Delegate {
    public:
     virtual ~Delegate() {}
 
@@ -32,7 +33,6 @@ class MessageWindow : base::NonThreadSafe {
   };
 
   MessageWindow();
-  MessageWindow(const std::string& class_name, HINSTANCE instance);
   ~MessageWindow();
 
   // Registers the window class and creates the window. The incoming messages
@@ -62,6 +62,6 @@ class MessageWindow : base::NonThreadSafe {
 };
 
 }  // namespace win
-}  // namespace remoting
+}  // namespace base
 
-#endif  // REMOTING_HOST_WIN_MESSAGE_WINDOW_H_
+#endif  // BASE_WIN_MESSAGE_WINDOW_H_