Make some updates to extension iconography.

extensions/browser/api/management/management_api.cc

Index: extensions/browser/api/management/management_api.cc
diff --git a/extensions/browser/api/management/management_api.cc b/extensions/browser/api/management/management_api.cc
index 0c9d32584a3b7d456f0e2087ee2f1b718970ece5..18f94189620adb1a0bb58b74cdd42ef885bf74a8 100644
--- a/extensions/browser/api/management/management_api.cc
+++ b/extensions/browser/api/management/management_api.cc
@@ -162,9 +162,8 @@ management::ExtensionInfo CreateExtensionInfo(
     for (icon_iter = icons.begin(); icon_iter != icons.end(); ++icon_iter) {
       management::IconInfo icon_info;
       icon_info.size = icon_iter->first;
-      GURL url =
-          delegate->GetIconURL(&extension, icon_info.size,
-                               ExtensionIconSet::MATCH_EXACTLY, false, nullptr);
+      GURL url = delegate->GetIconURL(&extension, icon_info.size,
+                                      ExtensionIconSet::MATCH_EXACTLY, false);
       icon_info.url = url.spec();
       info.icons->push_back(std::move(icon_info));
     }