Remove all the ephemeral apps code.

extensions/browser/test_extension_registry_observer.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/browser/test_extension_registry_observer.h"
 
 #include "base/run_loop.h"
 #include "extensions/browser/extension_registry.h"
 
 namespace extensions {
@@ skipping 57 matching lines @@
 }
 
 const Extension* TestExtensionRegistryObserver::WaitForExtensionUnloaded() {
   return Wait(&unloaded_waiter_);
 }
 
 void TestExtensionRegistryObserver::OnExtensionWillBeInstalled(
     content::BrowserContext* browser_context,
     const Extension* extension,
     bool is_update,
-    bool from_ephemeral,
     const std::string& old_name) {
   if (extension_id_.empty() || extension->id() == extension_id_)
     will_be_installed_waiter_->OnObserved(extension);
 }
 
 void TestExtensionRegistryObserver::OnExtensionUninstalled(
     content::BrowserContext* browser_context,
     const Extension* extension,
     extensions::UninstallReason reason) {
   if (extension_id_.empty() || extension->id() == extension_id_)
@@ skipping 20 matching lines @@
   waiter->get()->Wait();
   const Extension* extension = waiter->get()->extension();
   // Reset the waiter for future uses.
   // We could have a Waiter::Reset method, but it would reset every field in the
   // class, so let's just reset the pointer.
   waiter->reset(new Waiter());
   return extension;
 }
 
 }  // namespace extensions