Base: Last set of files to use BASE_API (for base.dll)

base/win/object_watcher.h

Index: base/win/object_watcher.h
===================================================================
--- base/win/object_watcher.h	(revision 79631)
+++ base/win/object_watcher.h	(working copy)
@@ -8,6 +8,7 @@
 
 #include <windows.h>
 
+#include "base/base_api.h"
 #include "base/message_loop.h"
 
 namespace base {
@@ -41,7 +42,7 @@
 // scope, the watcher_ will be destroyed, and there is no need to worry about
 // OnObjectSignaled being called on a deleted MyClass pointer.  Easy!
 //
-class ObjectWatcher : public MessageLoop::DestructionObserver {
+class BASE_API ObjectWatcher : public MessageLoop::DestructionObserver {
  public:
   class Delegate {
    public: