Remove implicit conversions from scoped_refptr to T* in chrome/*/extensions/

chrome/common/extensions/manifest_tests/extension_manifests_chromepermission_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 "base/command_line.h"
 #include "chrome/common/extensions/manifest_tests/extension_manifest_test.h"
 #include "chrome/common/url_constants.h"
 #include "extensions/common/error_utils.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest.h"
@@ skipping 17 matching lines @@
   // Ignore the policy delegate for this test.
   PermissionsData::SetPolicyDelegate(NULL);
   CommandLine::ForCurrentProcess()->AppendSwitch(
       switches::kExtensionsOnChromeURLs);
   std::string error;
   scoped_refptr<Extension> extension =
     LoadAndExpectSuccess("permission_chrome_url_invalid.json");
   EXPECT_EQ("", error);
   const GURL newtab_url(chrome::kChromeUINewTabURL);
   EXPECT_TRUE(extension->permissions_data()->CanAccessPage(
-      extension, newtab_url, newtab_url, 0, -1, &error))
+      extension.get(), newtab_url, newtab_url, 0, -1, &error))
       << error;
 }
 
 TEST_F(ExtensionManifestTest, ChromeResourcesPermissionValidOnlyForComponents) {
   LoadAndExpectWarning("permission_chrome_resources_url.json",
                        ErrorUtils::FormatErrorMessage(
                            errors::kInvalidPermissionScheme,
                            "chrome://resources/"));
   std::string error;
   LoadExtension(Manifest("permission_chrome_resources_url.json"),
                 &error,
                 extensions::Manifest::COMPONENT,
                 Extension::NO_FLAGS);
   EXPECT_EQ("", error);
 }
 
 }  // namespace extensions