Remove all the ephemeral apps code.

extensions/browser/extension_registry_unittest.cc

Index: extensions/browser/extension_registry_unittest.cc
diff --git a/extensions/browser/extension_registry_unittest.cc b/extensions/browser/extension_registry_unittest.cc
index 40cd4fd9b368e234d12ff01a25d2ba41a74a88e2..a8bc201270a10feee1199c748c47bb6ed5af3cad 100644
--- a/extensions/browser/extension_registry_unittest.cc
+++ b/extensions/browser/extension_registry_unittest.cc
@@ -65,7 +65,6 @@ class TestObserver : public ExtensionRegistryObserver {
   void OnExtensionWillBeInstalled(content::BrowserContext* browser_context,
                                   const Extension* extension,
                                   bool is_update,
-                                  bool from_ephemeral,
                                   const std::string& old_name) override {
     installed_.push_back(extension);
   }
@@ -246,14 +245,13 @@ TEST_F(ExtensionRegistryTest, Observer) {
   scoped_refptr<const Extension> extension =
       test_util::CreateEmptyExtension("id");
 
-  registry.TriggerOnWillBeInstalled(extension.get(), false, false,
-                                    std::string());
+  registry.TriggerOnWillBeInstalled(extension.get(), false, std::string());
   EXPECT_TRUE(HasSingleExtension(observer.installed(), extension.get()));
 
   registry.AddEnabled(extension);
   registry.TriggerOnLoaded(extension.get());
 
-  registry.TriggerOnWillBeInstalled(extension.get(), true, false, "foo");
+  registry.TriggerOnWillBeInstalled(extension.get(), true, "foo");
 
   EXPECT_TRUE(HasSingleExtension(observer.loaded(), extension.get()));
   EXPECT_TRUE(observer.unloaded().empty());