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

webkit/glue/plugins/pepper_image_data.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_image_data.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/logging.h"
@@ skipping 13 matching lines @@
 PP_ImageDataFormat GetNativeImageDataFormat() {
   return PP_IMAGEDATAFORMAT_BGRA_PREMUL;
 }
 
 PP_Resource Create(PP_Module module_id,
                    PP_ImageDataFormat format,
                    const PP_Size* size,
                    bool init_to_zero) {
   PluginModule* module = PluginModule::FromPPModule(module_id);
   if (!module)
-    return NULL;
+    return 0;
 
   scoped_refptr<ImageData> data(new ImageData(module));
   if (!data->Init(format, size->width, size->height, init_to_zero))
-    return NULL;
+    return 0;
 
   return data->GetReference();
 }
 
 bool IsImageData(PP_Resource resource) {
   return !!Resource::GetAs<ImageData>(resource);
 }
 
 bool Describe(PP_Resource resource, PP_ImageDataDesc* desc) {
   // Give predictable values on failure.
@@ skipping 101 matching lines @@
 }
 
 void ImageData::Swap(ImageData* other) {
   swap(other->platform_image_, platform_image_);
   swap(other->mapped_canvas_, mapped_canvas_);
   std::swap(other->width_, width_);
   std::swap(other->height_, height_);
 }
 
 }  // namespace pepper