Remove all the ephemeral apps code.

chrome/browser/themes/theme_service.cc

 // Copyright (c) 2012 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 "chrome/browser/themes/theme_service.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 107 matching lines @@
 
   ~ThemeObserver() override {
     extensions::ExtensionRegistry::Get(theme_service_->profile_)
         ->RemoveObserver(this);
   }
 
  private:
   void OnExtensionWillBeInstalled(content::BrowserContext* browser_context,
                                   const extensions::Extension* extension,
                                   bool is_update,
-                                  bool from_ephemeral,
                                   const std::string& old_name) override {
     if (extension->is_theme()) {
       // The theme may be initially disabled. Wait till it is loaded (if ever).
       theme_service_->installed_pending_load_id_ = extension->id();
     }
   }
 
   void OnExtensionLoaded(content::BrowserContext* browser_context,
                          const extensions::Extension* extension) override {
     if (extension->is_theme() &&
@@ skipping 558 matching lines @@
 void ThemeService::OnInfobarDestroyed() {
   number_of_infobars_--;
 
   if (number_of_infobars_ == 0)
     RemoveUnusedThemes(false);
 }
 
 ThemeSyncableService* ThemeService::GetThemeSyncableService() const {
   return theme_syncable_service_.get();
 }