Linux: Fix some NULL versus 0 issues to appease gcc-4.5.

webkit/glue/plugins/pepper_font.cc

 // Copyright (c) 2010 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 "build/build_config.h"
 
 #include "webkit/glue/plugins/pepper_font.h"
 
 #if defined(OS_LINUX)
 #include <unistd.h>
 #endif
 
 #include "base/logging.h"
 #include "third_party/ppapi/c/ppb_font.h"
 #include "webkit/glue/plugins/pepper_plugin_module.h"
 #include "webkit/glue/webkit_glue.h"
 
 namespace pepper {
 
 namespace {
 
 PP_Resource MatchFontWithFallback(PP_Module module_id,
                                   const PP_FontDescription* description) {
 #if defined(OS_LINUX)
   PluginModule* module = PluginModule::FromPPModule(module_id);
   if (!module)
-    return NULL;
+    return 0;
 
   int fd = webkit_glue::MatchFontWithFallback(description->face,
                                               description->weight >= 700,
                                               description->italic,
                                               description->charset);
   if (fd == -1)
-    return NULL;
+    return 0;
 
   scoped_refptr<Font> font(new Font(module, fd));
 
   return font->GetReference();
 #else
   // For trusted pepper plugins, this is only needed in Linux since font loading
   // on Windows and Mac works through the renderer sandbox.
   return false;
 #endif
 }
@@ skipping 45 matching lines @@
   bool rv = webkit_glue::GetFontTable(
       fd_, table, static_cast<uint8_t*>(output), &temp_size);
   *output_length = static_cast<uint32_t>(temp_size);
   return rv;
 #else
   return false;
 #endif
 }
 
 }  // namespace pepper