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      1 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/extensions/extension_assets_manager.h"
      6 
      7 #include "base/memory/singleton.h"
      8 #include "extensions/common/extension.h"
      9 #include "extensions/common/file_util.h"
     10 
     11 #if defined(OS_CHROMEOS)
     12 #include "chrome/browser/extensions/extension_assets_manager_chromeos.h"
     13 #endif
     14 
     15 namespace extensions {
     16 namespace {
     17 
     18 class ExtensionAssetsManagerImpl :  public ExtensionAssetsManager {
     19  public:
     20   static ExtensionAssetsManagerImpl* GetInstance() {
     21     return Singleton<ExtensionAssetsManagerImpl>::get();
     22   }
     23 
     24   // Override from ExtensionAssetsManager.
     25   virtual void InstallExtension(const Extension* extension,
     26                                 const base::FilePath& unpacked_extension_root,
     27                                 const base::FilePath& local_install_dir,
     28                                 Profile* profile,
     29                                 InstallExtensionCallback callback) OVERRIDE {
     30     callback.Run(file_util::InstallExtension(
     31         unpacked_extension_root,
     32         extension->id(),
     33         extension->VersionString(),
     34         local_install_dir));
     35   }
     36 
     37   virtual void UninstallExtension(
     38       const std::string& id,
     39       Profile* profile,
     40       const base::FilePath& local_install_dir,
     41       const base::FilePath& extension_root) OVERRIDE {
     42     file_util::UninstallExtension(local_install_dir, id);
     43   }
     44 
     45  private:
     46   friend struct DefaultSingletonTraits<ExtensionAssetsManagerImpl>;
     47 
     48   ExtensionAssetsManagerImpl() {}
     49   virtual ~ExtensionAssetsManagerImpl() {}
     50 
     51   DISALLOW_COPY_AND_ASSIGN(ExtensionAssetsManagerImpl);
     52 };
     53 
     54 }  // namespace
     55 
     56 // static
     57 ExtensionAssetsManager* ExtensionAssetsManager::GetInstance() {
     58 #if defined(OS_CHROMEOS)
     59   return ExtensionAssetsManagerChromeOS::GetInstance();
     60 #else
     61   // If not Chrome OS, use trivial implementation that doesn't share anything.
     62   return ExtensionAssetsManagerImpl::GetInstance();
     63 #endif  // OS_CHROMEOS
     64 }
     65 
     66 }  // namespace extensions
     67