Remove deprecated ExtensionService::GetInstalledExtension() usage

extensions/browser/extension_registry.cc

Index: extensions/browser/extension_registry.cc
diff --git a/extensions/browser/extension_registry.cc b/extensions/browser/extension_registry.cc
index 65c8b5e9d36b6c1e81b5ae44ee591fe0129fde75..c59d6356ebc8880448cf24b5efa87cd04f16351d 100644
--- a/extensions/browser/extension_registry.cc
+++ b/extensions/browser/extension_registry.cc
@@ -132,6 +132,11 @@ const Extension* ExtensionRegistry::GetExtensionById(const std::string& id,
   return NULL;
 }
 
+const Extension* ExtensionRegistry::GetInstalledExtension(
+    const std::string& id) const {
+  return GetExtensionById(id, ExtensionRegistry::EVERYTHING);
+}
+
 bool ExtensionRegistry::AddEnabled(
     const scoped_refptr<const Extension>& extension) {
   return enabled_extensions_.Insert(extension);