Remove deprecated ExtensionService::GetInstalledExtension() usage

extensions/browser/extension_registry.h

Index: extensions/browser/extension_registry.h
diff --git a/extensions/browser/extension_registry.h b/extensions/browser/extension_registry.h
index fa5b49365aa1ada60d91a53684ffac0ae9a9720b..fb7a9a502a9e634d1576afb63ab481628d118c42 100644
--- a/extensions/browser/extension_registry.h
+++ b/extensions/browser/extension_registry.h
@@ -123,6 +123,10 @@ class ExtensionRegistry : public KeyedService {
   const Extension* GetExtensionById(const std::string& id,
                                     int include_mask) const;
 
+  // Looks up an extension by ID, regardless of whether it's enabled,
+  // disabled, blacklisted, or terminated.
+  const Extension* GetInstalledExtension(const std::string& id) const;
+
   // Adds the specified extension to the enabled set. The registry becomes an
   // owner. Any previous extension with the same ID is removed.
   // Returns true if there is no previous extension.