Remove all the ephemeral apps code.

chrome/browser/apps/ephemeral_app_service_browsertest.cc

-// Copyright 2013 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 <vector>
-
-#include "chrome/browser/apps/ephemeral_app_browsertest.h"
-#include "chrome/browser/apps/ephemeral_app_service.h"
-#include "extensions/browser/extension_registry.h"
-
-using extensions::Extension;
-using extensions::ExtensionRegistry;
-
-class EphemeralAppServiceBrowserTest : public EphemeralAppTestBase {};
-
-// Verify that the cache of ephemeral apps is correctly cleared. All ephemeral
-// apps should be removed.
-IN_PROC_BROWSER_TEST_F(EphemeralAppServiceBrowserTest, ClearCachedApps) {
-  const Extension* running_app =
-      InstallAndLaunchEphemeralApp(kMessagingReceiverApp);
-  const Extension* inactive_app =
-      InstallAndLaunchEphemeralApp(kDispatchEventTestApp);
-  std::string inactive_app_id = inactive_app->id();
-  std::string running_app_id = running_app->id();
-  CloseAppWaitForUnload(inactive_app_id);
-
-  EphemeralAppService* ephemeral_service =
-      EphemeralAppService::Get(browser()->profile());
-  ASSERT_TRUE(ephemeral_service);
-
-  ExtensionRegistry* registry = ExtensionRegistry::Get(profile());
-  ASSERT_TRUE(registry);
-
-  int extension_count = registry->GenerateInstalledExtensionsSet()->size();
-
-  ephemeral_service->ClearCachedApps();
-
-  EXPECT_FALSE(registry->GetExtensionById(inactive_app_id,
-                                          ExtensionRegistry::EVERYTHING));
-  EXPECT_FALSE(registry->GetExtensionById(running_app_id,
-                                          ExtensionRegistry::EVERYTHING));
-
-  int new_extension_count = registry->GenerateInstalledExtensionsSet()->size();
-  EXPECT_EQ(2, extension_count - new_extension_count);
-}