Adds some ifdefs so that test_shell can be compiled on linux...

chrome/common/resource_bundle_linux.cc

 // Copyright (c) 2006-2008 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.
 
 #include "chrome/common/resource_bundle.h"
 
+#if defined(TOOLKIT_GTK)
 #include <gtk/gtk.h>
+#endif
 
 #include "base/base_paths.h"
 #include "base/data_pack.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/string_piece.h"
 #include "base/string_util.h"
 #include "chrome/common/chrome_paths.h"
@@ skipping 95 matching lines @@
       return std::wstring();
     }
   }
 
   // Data pack encodes strings as UTF16.
   string16 msg(reinterpret_cast<const char16*>(data.data()),
                data.length() / 2);
   return UTF16ToWide(msg);
 }
 
+#if defined(TOOLKIT_GTK)
 GdkPixbuf* ResourceBundle::LoadPixbuf(int resource_id) {
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
   std::vector<unsigned char> data;
   rb.LoadImageResourceBytes(resource_id, &data);
 
   GdkPixbufLoader* loader = gdk_pixbuf_loader_new();
   bool ok = gdk_pixbuf_loader_write(loader, static_cast<guint8*>(data.data()),
       data.size(), NULL);
   DCHECK(ok) << "failed to write " << resource_id;
   // Calling gdk_pixbuf_loader_close forces the data to be parsed by the
   // loader.  We must do this before calling gdk_pixbuf_loader_get_pixbuf.
   ok = gdk_pixbuf_loader_close(loader, NULL);
   DCHECK(ok) << "close failed " << resource_id;
   GdkPixbuf* pixbuf = gdk_pixbuf_loader_get_pixbuf(loader);
   DCHECK(pixbuf) << "failed to load " << resource_id << " " << data.size();
 
   // The pixbuf is owned by the loader, so add a ref so when we delete the
   // loader, the pixbuf still exists.
   g_object_ref(pixbuf);
   g_object_unref(loader);
 
   return pixbuf;
 }
+#endif