Remove all the ephemeral apps code.

extensions/browser/extension_util.h

Index: extensions/browser/extension_util.h
diff --git a/extensions/browser/extension_util.h b/extensions/browser/extension_util.h
index b5f758edb1d226b3906bd3eb4f7eb481f5a3d786..cdd4218ad14be242f26dc0ff866b0640bb9e7786 100644
--- a/extensions/browser/extension_util.h
+++ b/extensions/browser/extension_util.h
@@ -19,19 +19,10 @@ struct ExtensionInfo;
 
 namespace util {
 
-// TODO(tmdiep): Move functions from
+// TODO(benwells): Move functions from
 // chrome/browser/extensions/extension_util.h/cc that are only dependent on
 // extensions/ here.
 
-// Returns true if |extension_id| identifies an extension that is installed
-// permanently and not ephemerally.
-bool IsExtensionInstalledPermanently(const std::string& extension_id,
-                                     content::BrowserContext* context);
-
-// Returns true if |extension_id| identifies an ephemeral app.
-bool IsEphemeralApp(const std::string& extension_id,
-                    content::BrowserContext* context);
-
 // Returns true if the extension has isolated storage.
 bool HasIsolatedStorage(const ExtensionInfo& info);