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

chrome/common/extensions/extension_manifests_unittest.cc

 // Copyright (c) 2010 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 "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/scoped_ptr.h"
 #include "base/string_util.h"
 #include "chrome/common/chrome_paths.h"
@@ skipping 26 matching lines @@
     EXPECT_TRUE(file_util::PathExists(path));
 
     JSONFileValueSerializer serializer(path);
     scoped_ptr<DictionaryValue> value(
         static_cast<DictionaryValue*>(serializer.Deserialize(NULL, error)));
     if (!value.get())
       return NULL;
 
     scoped_ptr<Extension> extension(new Extension(path.DirName()));
     extension->set_location(location);
-    if (enable_apps_)
-      extension->set_apps_enabled(true);
+    extension->set_apps_enabled(enable_apps_);
 
     if (!extension->InitFromValue(*value, false, error))
       return NULL;
 
     return extension.release();
   }
 
   Extension* LoadAndExpectSuccess(const std::string& name) {
     std::string error;
     Extension* extension = LoadExtension(name, &error);
@@ skipping 154 matching lines @@
       "permission_chrome_resources_url.json",
       Extension::COMPONENT,
       &error));
   EXPECT_EQ("", error);
 }
 
 TEST_F(ManifestTest, ChromeURLContentScriptInvalid) {
   LoadAndExpectError("content_script_chrome_url_invalid.json",
       errors::kInvalidMatch);
 }