Add support for multiple icon sizes for Mac platform apps

chrome/browser/shell_integration.h

Index: chrome/browser/shell_integration.h
diff --git a/chrome/browser/shell_integration.h b/chrome/browser/shell_integration.h
index be5121fc548040a012cd55cdc19616095d57e7f1..823a730a8ed84a6243a0f116b152454316ad934f 100644
--- a/chrome/browser/shell_integration.h
+++ b/chrome/browser/shell_integration.h
@@ -14,6 +14,7 @@
 #include "base/string16.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/gfx/image/image.h"
 
 class CommandLine;
 
@@ -77,7 +78,7 @@ class ShellIntegration {
     string16 title;
     string16 description;
     FilePath extension_path;
-    SkBitmap favicon;
+    gfx::Image favicon;
 
     bool create_on_desktop;
     bool create_in_applications_menu;