app_list: Drive app integration.

chrome/browser/extensions/crx_installer.h

Index: chrome/browser/extensions/crx_installer.h
diff --git a/chrome/browser/extensions/crx_installer.h b/chrome/browser/extensions/crx_installer.h
index fe34b2f1ec016ead88a6f14d973d070a1f152de1..c814162a2638ca1c2fbff96dbab1133214696898 100644
--- a/chrome/browser/extensions/crx_installer.h
+++ b/chrome/browser/extensions/crx_installer.h
@@ -210,6 +210,8 @@ class CrxInstaller
 
   const Extension* extension() { return installer_.extension().get(); }
 
+  const std::string& current_version() const { return current_version_; }
+
  private:
   friend class ::ExtensionServiceTest;
   friend class ExtensionUpdaterTest;
@@ -224,8 +226,7 @@ class CrxInstaller
   void ConvertUserScriptOnFileThread();
 
   // Converts the source web app to an extension.
-  void ConvertWebAppOnFileThread(const WebApplicationInfo& web_app,
-                                 const base::FilePath& install_directory);
+  void ConvertWebAppOnFileThread(const WebApplicationInfo& web_app);
 
   // Called after OnUnpackSuccess as a last check to see whether the install
   // should complete.
@@ -286,7 +287,7 @@ class CrxInstaller
   GURL download_url_;
 
   // The directory extensions are installed to.
-  base::FilePath install_directory_;
+  const base::FilePath install_directory_;
 
   // The location the installation came from (bundled with Chromium, registry,
   // manual install, etc). This metadata is saved with the installation if