[Extensions] Move Feature channel code into //extensions

chrome/common/extensions/manifest_handlers/ui_overrides_handler_unittest.cc

 // Copyright 2013 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_handlers/ui_overrides_handler.h"
 
 #include <memory>
 
 #include "base/command_line.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/strings/utf_string_conversions.h"
-#include "chrome/common/extensions/features/feature_channel.h"
 #include "components/version_info/version_info.h"
 #include "extensions/common/error_utils.h"
 #include "extensions/common/extension.h"
+#include "extensions/common/features/feature_channel.h"
 #include "extensions/common/manifest_constants.h"
 #include "extensions/common/manifest_url_handlers.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 const char kManifest[] = "{"
     " \"version\" : \"1.0.0.0\","
     " \"name\" : \"Test\","
     " \"chrome_ui_overrides\" : {"
@@ skipping 68 matching lines @@
       &error);
   EXPECT_FALSE(extension.get());
   EXPECT_EQ(
       extensions::ErrorUtils::FormatErrorMessage(
           extensions::manifest_errors::kInvalidEmptyDictionary,
           extensions::manifest_keys::kUIOverride),
       error);
 }
 
 }  // namespace