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

webkit/glue/plugins/pepper_buffer.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 "webkit/glue/plugins/pepper_buffer.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 #include "third_party/ppapi/c/pp_instance.h"
 #include "third_party/ppapi/c/pp_module.h"
 #include "third_party/ppapi/c/pp_resource.h"
 #include "third_party/ppapi/c/ppb_buffer.h"
 #include "webkit/glue/plugins/pepper_plugin_instance.h"
 #include "webkit/glue/plugins/pepper_plugin_module.h"
 
 namespace pepper {
 
 namespace {
 
 PP_Resource Create(PP_Module module_id, int32_t size) {
   PluginModule* module = PluginModule::FromPPModule(module_id);
   if (!module)
-    return NULL;
+    return 0;
 
   scoped_refptr<Buffer> buffer(new Buffer(module));
   if (!buffer->Init(size))
-    return NULL;
+    return 0;
 
   return buffer->GetReference();
 }
 
 bool IsBuffer(PP_Resource resource) {
   return !!Resource::GetAs<Buffer>(resource);
 }
 
 bool Describe(PP_Resource resource, int32_t* size_in_bytes) {
   scoped_refptr<Buffer> buffer(Resource::GetAs<Buffer>(resource));
@@ skipping 67 matching lines @@
   mem_buffer_.reset();
 }
 
 void Buffer::Swap(Buffer* other) {
   swap(other->mem_buffer_, mem_buffer_);
   std::swap(other->size_, size_);
 }
 
 }  // namespace pepper