Introduce background.scripts feature for extension manifests.

chrome/browser/extensions/extension_service_unittest.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/extension_service_unittest.h"
 
 #include <algorithm>
 #include <set>
 #include <vector>
 
@@ skipping 1082 matching lines @@
   expected_patterns.ClearPatterns();
   AddPattern(&expected_patterns, "http://*.google.com/*");
   AddPattern(&expected_patterns, "https://*.google.com/*");
   EXPECT_EQ(expected_patterns,
             extension->GetActivePermissions()->explicit_hosts());
 
   EXPECT_EQ(std::string(good1), loaded_[1]->id());
   EXPECT_EQ(std::string("My extension 2"), loaded_[1]->name());
   EXPECT_EQ(std::string(""), loaded_[1]->description());
   EXPECT_EQ(loaded_[1]->GetResourceURL("background.html"),
-            loaded_[1]->background_url());
+            loaded_[1]->GetBackgroundURL());
   EXPECT_EQ(0u, loaded_[1]->content_scripts().size());
   // We don't parse the plugins section on Chrome OS.
 #if defined(OS_CHROMEOS)
   EXPECT_EQ(0u, loaded_[1]->plugins().size());
 #else
   ASSERT_EQ(2u, loaded_[1]->plugins().size());
   EXPECT_EQ(loaded_[1]->path().AppendASCII("content_plugin.dll").value(),
             loaded_[1]->plugins()[0].path.value());
   EXPECT_TRUE(loaded_[1]->plugins()[0].is_public);
   EXPECT_EQ(loaded_[1]->path().AppendASCII("extension_plugin.dll").value(),
@@ skipping 3293 matching lines @@
   ASSERT_FALSE(AddPendingSyncInstall());
 
   // Wait for the external source to install.
   WaitForCrxInstall(crx_path_, INSTALL_NEW);
   ASSERT_TRUE(IsCrxInstalled());
 
   // Now that the extension is installed, sync request should fail
   // because the extension is already installed.
   ASSERT_FALSE(AddPendingSyncInstall());
 }