Continue with the FreeBSD port - this version builds and links, though...

base/clipboard.h

 // Copyright (c) 2009 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 BASE_CLIPBOARD_H_
 #define BASE_CLIPBOARD_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 62 matching lines @@
   typedef std::vector<ObjectMapParam> ObjectMapParams;
   typedef std::map<int /* ObjectType */, ObjectMapParams> ObjectMap;
 
   // Buffer designates which clipboard the action should be applied to.
   // Only platforms that use the X Window System support the selection
   // buffer. Furthermore we currently only use a buffer other than the
   // standard buffer when reading from the clipboard so only those
   // functions accept a buffer parameter.
   enum Buffer {
     BUFFER_STANDARD,
-#if defined(OS_LINUX)
+#if defined(USE_X11)
     BUFFER_SELECTION,
 #endif
   };
 
   static bool IsValidBuffer(int32 buffer) {
     switch (buffer) {
       case BUFFER_STANDARD:
         return true;
-#if defined(OS_LINUX)
+#if defined(USE_X11)
       case BUFFER_SELECTION:
         return true;
 #endif
     }
     return false;
   }
 
   static Buffer FromInt(int32 buffer) {
     return static_cast<Buffer>(buffer);
   }
@@ skipping 138 matching lines @@
 
   TargetMap* clipboard_data_;
   GtkClipboard* clipboard_;
   GtkClipboard* primary_selection_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(Clipboard);
 };
 
 #endif  // BASE_CLIPBOARD_H_