Move more web widgets painting from webkit to chrome.

gfx/gfx_module.h

+// Copyright (c) 2011 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 GFX_MODULE_H_
+#define GFX_MODULE_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "base/string_piece.h"
+
+namespace gfx {
+
+// Defines global initializers and associated methods for the gfx module.
+// See net/base/net_module.h for more details.
+class GfxModule {
+ public:
+  typedef base::StringPiece (*ResourceProvider)(int key);
+
+  // Set the function to call when the gfx module needs resources
+  static void SetResourceProvider(ResourceProvider func);
+
+  // Call the resource provider (if one exists) to get the specified resource.
+  // Returns an empty string if the resource does not exist or if there is no
+  // resource provider.
+  static base::StringPiece GetResource(int key);
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(GfxModule);
+};
+
+}  // namespace gfx
+
+#endif  // GFX_MODULE_H_