Move Extension into extensions namespace

chrome/common/extensions/manifest_tests/extension_manifests_launch_unittest.cc

 // Copyright (c) 2012 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/common/extensions/manifest_tests/extension_manifest_test.h"
 
 #include "base/command_line.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_error_utils.h"
 #include "chrome/common/extensions/extension_manifest_constants.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace errors = extension_manifest_errors;
 
 TEST_F(ExtensionManifestTest, AppLaunchContainer) {
-  scoped_refptr<Extension> extension;
+  scoped_refptr<extensions::Extension> extension;
 
   extension = LoadAndExpectSuccess("launch_tab.json");
   EXPECT_EQ(extension_misc::LAUNCH_TAB, extension->launch_container());
 
   extension = LoadAndExpectSuccess("launch_panel.json");
   EXPECT_EQ(extension_misc::LAUNCH_PANEL, extension->launch_container());
 
   extension = LoadAndExpectSuccess("launch_default.json");
   EXPECT_EQ(extension_misc::LAUNCH_TAB, extension->launch_container());
 
@@ skipping 63 matching lines @@
                  errors::kInvalidLaunchValue,
                  keys::kLaunchWebURL)),
     Testcase("launch_url_invalid_localized.json",
              ExtensionErrorUtils::FormatErrorMessage(
                  errors::kInvalidLaunchValue,
                  keys::kLaunchWebURL))
   };
   RunTestcases(testcases, arraysize(testcases),
       EXPECT_TYPE_ERROR);
 
-  scoped_refptr<Extension> extension;
+  scoped_refptr<extensions::Extension> extension;
   extension = LoadAndExpectSuccess("launch_local_path.json");
   EXPECT_EQ(extension->url().spec() + "launch.html",
             extension->GetFullLaunchURL().spec());
 
   extension = LoadAndExpectSuccess("launch_local_path_localized.json");
   EXPECT_EQ(extension->url().spec() + "launch.html",
             extension->GetFullLaunchURL().spec());
 
   LoadAndExpectError("launch_web_url_relative.json",
                      ExtensionErrorUtils::FormatErrorMessage(
                          errors::kInvalidLaunchValue,
                          keys::kLaunchWebURL));
 
   extension = LoadAndExpectSuccess("launch_web_url_absolute.json");
   EXPECT_EQ(GURL("http://www.google.com/launch.html"),
             extension->GetFullLaunchURL());
   extension = LoadAndExpectSuccess("launch_web_url_localized.json");
   EXPECT_EQ(GURL("http://www.google.com/launch.html"),
             extension->GetFullLaunchURL());
 }