Move Icons out of Extension class

chrome/browser/extensions/app_icon_loader_impl.cc

Index: chrome/browser/extensions/app_icon_loader_impl.cc
diff --git a/chrome/browser/extensions/app_icon_loader_impl.cc b/chrome/browser/extensions/app_icon_loader_impl.cc
index e4098afb6a140963a9657d4da74cbeb407667f4a..e3f9a82148faa9a5662ba0fbdb8cbb76984a855c 100644
--- a/chrome/browser/extensions/app_icon_loader_impl.cc
+++ b/chrome/browser/extensions/app_icon_loader_impl.cc
@@ -8,6 +8,7 @@
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/common/extensions/api/icons/icons_handler.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "ui/gfx/color_utils.h"
@@ -56,9 +57,9 @@ void AppIconLoaderImpl::FetchImage(const std::string& id) {
   extensions::IconImage* image = new extensions::IconImage(
       profile_,
       extension,
-      extension->icons(),
+      extensions::IconsInfo::GetIcons(extension),
       icon_size_,
-      extensions::Extension::GetDefaultIcon(true),
+      extensions::IconsInfo::GetDefaultAppIcon(),
       this);
   // |map_| takes ownership of |image|.
   map_[image] = id;