Add a helper to resource bundle to get an NSImage back....

app/resource_bundle.h

 // Copyright (c) 2006-2009 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 APP_RESOURCE_BUNDLE_H_
 #define APP_RESOURCE_BUNDLE_H_
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
@@ skipping 17 matching lines @@
 #if defined(OS_LINUX)
 typedef struct _GdkPixbuf GdkPixbuf;
 #endif
 namespace gfx{
 class Font;
 }
 class SkBitmap;
 typedef uint32 SkColor;
 class StringPiece;
 
+#if defined(OS_MACOSX)
+#ifdef __OBJC__
+@class NSImage;
+#else
+class NSImage;
+#endif  // __OBJC__
+#endif  // defined(OS_MACOSX)
+
 // ResourceBundle is a central facility to load images and other resources,
 // such as theme graphics.
 // Every resource is loaded only once.
 class ResourceBundle {
  public:
   // An enumeration of the various font styles used throughout Chrome.
   // The following holds true for the font sizes:
   // Small <= Base <= Medium <= MediumBold <= Large.
   enum FontStyle {
     SmallFont,
@@ skipping 57 matching lines @@
 
   // Returns the font for the specified style.
   gfx::Font GetFont(FontStyle style);
 
 #if defined(OS_WIN)
   // Loads and returns an icon from the theme dll.
   HICON LoadThemeIcon(int icon_id);
 
   // Loads and returns a cursor from the app module.
   HCURSOR LoadCursor(int cursor_id);
+#elif defined(OS_MACOSX)
+  // Wrapper for GetBitmapNamed. Converts the bitmap to an autoreleased NSImage.
+  NSImage* GetNSImageNamed(int resource_id);
 #elif defined(OS_LINUX)
   // Gets the GdkPixbuf with the specified resource_id, first by looking into
   // the theme data, than in the current module data if applicable.  Returns a
   // pointer to a shared instance of the GdkPixbuf.  This shared GdkPixbuf is
   // owned by the resource bundle and should not be freed.
   //
   // The bitmap is assumed to exist. This function will log in release, and
   // assert in debug mode if it does not. On failure, this will return a
   // pointer to a shared empty placeholder bitmap so it will be visible what
   // is missing.
@@ skipping 84 matching lines @@
   scoped_ptr<gfx::Font> medium_bold_font_;
   scoped_ptr<gfx::Font> large_font_;
   scoped_ptr<gfx::Font> web_font_;
 
   static ResourceBundle* g_shared_instance_;
 
   DISALLOW_EVIL_CONSTRUCTORS(ResourceBundle);
 };
 
 #endif // APP_RESOURCE_BUNDLE_H_