Remove all the ephemeral apps code.

chrome/browser/extensions/extension_service_test_with_install.h

 // Copyright 2015 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_TEST_WITH_INSTALL_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_TEST_WITH_INSTALL_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 104 matching lines @@
 
   // ExtensionRegistryObserver:
   void OnExtensionLoaded(content::BrowserContext* browser_context,
                          const Extension* extension) override;
   void OnExtensionUnloaded(content::BrowserContext* browser_context,
                            const Extension* extension,
                            UnloadedExtensionInfo::Reason reason) override;
   void OnExtensionWillBeInstalled(content::BrowserContext* browser_context,
                                   const Extension* extension,
                                   bool is_update,
-                                  bool from_ephemeral,
                                   const std::string& old_name) override;
 
   // TODO(treib,devlin): Make these private and add accessors as needed.
   extensions::ExtensionList loaded_;
   const Extension* installed_;
   bool was_update_;
   std::string old_name_;
   std::string unloaded_id_;
   UnloadedExtensionInfo::Reason unloaded_reason_;
 
  private:
   void InstallCRXInternal(const base::FilePath& crx_path, int creation_flags);
 
   size_t expected_extensions_count_;
 
   FeatureSwitch::ScopedOverride override_external_install_prompt_;
 
   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
       registry_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionServiceTestWithInstall);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_TEST_WITH_INSTALL_H_