Move //components/test_runner back into //content/shell

components/test_runner/gc_controller.h

-// Copyright 2014 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.
-
-#ifndef COMPONENTS_TEST_RUNNER_GC_CONTROLLER_H_
-#define COMPONENTS_TEST_RUNNER_GC_CONTROLLER_H_
-
-#include "base/macros.h"
-#include "gin/wrappable.h"
-
-namespace blink {
-class WebFrame;
-}
-
-namespace gin {
-class Arguments;
-}
-
-namespace test_runner {
-
-class GCController : public gin::Wrappable<GCController> {
- public:
-  static gin::WrapperInfo kWrapperInfo;
-  static void Install(blink::WebFrame* frame);
-
- private:
-  GCController();
-  ~GCController() override;
-
-  // gin::Wrappable.
-  gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
-      v8::Isolate* isolate) override;
-
-  void Collect(const gin::Arguments& args);
-  void CollectAll(const gin::Arguments& args);
-  void MinorCollect(const gin::Arguments& args);
-
-  DISALLOW_COPY_AND_ASSIGN(GCController);
-};
-
-}  // namespace test_runner
-
-#endif  // COMPONENTS_TEST_RUNNER_GC_CONTROLLER_H_