Reland of Change extension icon load errors to warnings

chrome/browser/extensions/extension_action_manager_unittest.cc

Index: chrome/browser/extensions/extension_action_manager_unittest.cc
diff --git a/chrome/browser/extensions/extension_action_manager_unittest.cc b/chrome/browser/extensions/extension_action_manager_unittest.cc
index f809bbcf0528e54242287c32b49970d82a50e231..617c41c2dead38e4511815aeb48f27956aa704cd 100644
--- a/chrome/browser/extensions/extension_action_manager_unittest.cc
+++ b/chrome/browser/extensions/extension_action_manager_unittest.cc
@@ -84,6 +84,7 @@
                   .Set("icons", std::move(extension_icons))
                   .Set(action_type, std::move(action))
                   .Set("name", std::string("Test Extension").append(id))))
+          .SetLocation(Manifest::UNPACKED)
           .SetID(id)
           .Build();
   registry_->AddEnabled(extension);