prune down content_dll change to just the CONTENT_EXPORTS

content/common/notification_source.h

 // Copyright (c) 2011 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.
 
 // This file defines the type used to provide sources for NotificationService
 // notifications.
 
 #ifndef CONTENT_COMMON_NOTIFICATION_SOURCE_H_
 #define CONTENT_COMMON_NOTIFICATION_SOURCE_H_
 #pragma once
 
 #include "base/basictypes.h"
+#include "content/common/content_export.h"
 
 // Do not declare a NotificationSource directly--use either
 // "Source<sourceclassname>(sourceclasspointer)" or
 // NotificationService::AllSources().
-class NotificationSource {
+class CONTENT_EXPORT NotificationSource {
  public:
   NotificationSource(const NotificationSource& other);
   ~NotificationSource();
 
   // NotificationSource can be used as the index for a map; this method
   // returns the pointer to the current source as an identifier, for use as a
   // map index.
   uintptr_t map_key() const { return reinterpret_cast<uintptr_t>(ptr_); }
 
   bool operator!=(const NotificationSource& other) const {
@@ skipping 18 matching lines @@
   Source(const T* ptr) : NotificationSource(ptr) {}  // NOLINT
   Source(const NotificationSource& other)      // NOLINT
     : NotificationSource(other) {}
 
   T* operator->() const { return ptr(); }
   // The casts here allow this to compile with both T = Foo and T = const Foo.
   T* ptr() const { return static_cast<T*>(const_cast<void*>(ptr_)); }
 };
 
 #endif  // CONTENT_COMMON_NOTIFICATION_SOURCE_H_