Allow chrome.management.setEnabled() to re-enable crashed extensions.

chrome/browser/extensions/extension_service.cc

Index: chrome/browser/extensions/extension_service.cc
diff --git a/chrome/browser/extensions/extension_service.cc b/chrome/browser/extensions/extension_service.cc
index 94fbde7b7eaeadc8a2d32b04ffcce57bb0950626..3f3706d9230920a43715e10481c6a57c3d8a743c 100644
--- a/chrome/browser/extensions/extension_service.cc
+++ b/chrome/browser/extensions/extension_service.cc
@@ -1911,8 +1911,9 @@ void ExtensionService::AddExtension(const Extension* extension) {
   if (!extensions_enabled() &&
       !extension->is_theme() &&
       extension->location() != Extension::COMPONENT &&
-      !Extension::IsExternalLocation(extension->location()))
+      !Extension::IsExternalLocation(extension->location())) {
     return;
+  }
 
   SetBeingUpgraded(extension, false);