prune down content_dll change to just the CONTENT_EXPORTS

content/common/page_transition_types.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.
 
 #ifndef CONTENT_COMMON_PAGE_TRANSITION_TYPES_H_
 #define CONTENT_COMMON_PAGE_TRANSITION_TYPES_H_
 #pragma once
 
 #include "base/basictypes.h"
+#include "content/common/content_export.h"
 
 // This class is for scoping only.
-class PageTransition {
+class CONTENT_EXPORT PageTransition {
  public:
   // Types of transitions between pages. These are stored in the history
   // database to separate visits, and are reported by the renderer for page
   // navigations.
   //
   // WARNING: don't change these numbers. They are written directly into the
   // history database, so future versions will need the same values to match
   // the enums.
   //
   // A type is made of a core value and a set of qualifiers. A type has one
@@ skipping 139 matching lines @@
   // Return the qualifier
   static int32 GetQualifier(Type type) {
     return type & QUALIFIER_MASK;
   }
 
   // Return a string version of the core type values.
   static const char* CoreTransitionString(Type type);
 };
 
 #endif  // CONTENT_COMMON_PAGE_TRANSITION_TYPES_H_