Reenable InstallApps attempt #2. This time with a fix to

chrome/browser/extensions/extensions_service_unittest.cc

 // Copyright (c) 2009 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/extensions_service_unittest.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 944 matching lines @@
   path = extensions_path.AppendASCII("theme_with_extension.crx");
   InstallExtension(path, false);
   ValidatePrefKeyCount(pref_count);
 
   // A theme with image resources missing (misspelt path).
   path = extensions_path.AppendASCII("theme_missing_image.crx");
   InstallExtension(path, false);
   ValidatePrefKeyCount(pref_count);
 }
 
-// TODO(mpcomplete): temporarily disabled while I fix the test on linux.
-// http://code.google.com/p/chromium/issues/detail?id=41280
-TEST_F(ExtensionsServiceTest, DISABLED_InstallApps) {
+TEST_F(ExtensionsServiceTest, InstallApps) {
   InitializeEmptyExtensionsService();
   FilePath extensions_path;
   ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &extensions_path));
   extensions_path = extensions_path.AppendASCII("extensions");
 
   // An empty app.
   InstallExtension(extensions_path.AppendASCII("app1.crx"), true);
   int pref_count = 0;
   ValidatePrefKeyCount(++pref_count);
   ValidateIntegerPref(app_crx, L"state", Extension::ENABLED);
@@ skipping 968 matching lines @@
   // Component extensions shouldn't get recourded in the prefs.
   ValidatePrefKeyCount(0);
 
   // Reload all extensions, and make sure it comes back.
   std::string extension_id = service_->extensions()->at(0)->id();
   loaded_.clear();
   service_->ReloadExtensions();
   ASSERT_EQ(1u, service_->extensions()->size());
   EXPECT_EQ(extension_id, service_->extensions()->at(0)->id());
 }