Update chrome/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/common/extensions/manifest_tests/extension_manifests_devtools_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/extension.h"
 #include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/extensions/manifest_tests/extension_manifest_test.h"
 #include "chrome/common/extensions/manifest_url_handler.h"
 #include "chrome/common/extensions/permissions/permissions_data.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class DevToolsPageManifestTest : public ExtensionManifestTest {
 };
 
 TEST_F(DevToolsPageManifestTest, DevToolsExtensions) {
   LoadAndExpectError("devtools_extension_url_invalid_type.json",
                      extension_manifest_errors::kInvalidDevToolsPage);
 
   scoped_refptr<extensions::Extension> extension;
   extension = LoadAndExpectSuccess("devtools_extension.json");
   EXPECT_EQ(extension->url().spec() + "devtools.html",
-            extensions::ManifestURL::GetDevToolsPage(extension).spec());
-  EXPECT_TRUE(
-      extensions::PermissionsData::HasEffectiveAccessToAllHosts(extension));
+            extensions::ManifestURL::GetDevToolsPage(extension.get()).spec());
+  EXPECT_TRUE(extensions::PermissionsData::HasEffectiveAccessToAllHosts(
+      extension.get()));
 }