Enable experimental permissions for extensions from the store.

chrome/browser/extensions/crx_installer_browsertest.cc

 // Copyright (c) 2011 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/extensions/crx_installer.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/extension_install_ui.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 55 matching lines @@
   }
 };
 
 IN_PROC_BROWSER_TEST_F(ExtensionCrxInstallerTest, Whitelisting) {
 #if !defined(OS_CHROMEOS)
   // An extension with NPAPI should give a prompt.
   EXPECT_TRUE(DidWhitelistInstallPrompt("uitest/plugins.crx",
                                         "hdgllgikmikobbofgnabhfimcfoopgnd"));
 #endif  // !defined(OS_CHROMEOS)
 }
+
+IN_PROC_BROWSER_TEST_F(ExtensionCrxInstallerTest,
+                       GalleryInstallGetsExperimental) {
+  InstallExtension(test_data_dir_.AppendASCII("experimental.crx"), 0);
+  InstallExtensionFromWebstore(
+      test_data_dir_.AppendASCII("experimental.crx"), 1);
+}