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

components/test_runner/layout_and_paint_async_then.cc

-// Copyright 2016 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 "components/test_runner/layout_and_paint_async_then.h"
-
-#include "base/callback.h"
-#include "base/trace_event/trace_event.h"
-#include "third_party/WebKit/public/platform/WebLayoutAndPaintAsyncCallback.h"
-#include "third_party/WebKit/public/web/WebPagePopup.h"
-#include "third_party/WebKit/public/web/WebWidget.h"
-
-namespace test_runner {
-
-namespace {
-
-class LayoutAndPaintCallback : public blink::WebLayoutAndPaintAsyncCallback {
- public:
-  LayoutAndPaintCallback(const base::Closure& callback)
-      : callback_(callback), wait_for_popup_(false) {}
-  virtual ~LayoutAndPaintCallback() {}
-
-  void set_wait_for_popup(bool wait) { wait_for_popup_ = wait; }
-
-  // WebLayoutAndPaintAsyncCallback implementation.
-  void didLayoutAndPaint() override;
-
- private:
-  base::Closure callback_;
-  bool wait_for_popup_;
-};
-
-void LayoutAndPaintCallback::didLayoutAndPaint() {
-  TRACE_EVENT0("shell", "LayoutAndPaintCallback::didLayoutAndPaint");
-  if (wait_for_popup_) {
-    wait_for_popup_ = false;
-    return;
-  }
-
-  if (!callback_.is_null())
-    callback_.Run();
-  delete this;
-}
-
-}  // namespace
-
-void LayoutAndPaintAsyncThen(blink::WebWidget* web_widget,
-                             const base::Closure& callback) {
-  TRACE_EVENT0("shell", "LayoutAndPaintAsyncThen");
-
-  LayoutAndPaintCallback* layout_and_paint_callback =
-      new LayoutAndPaintCallback(callback);
-  web_widget->layoutAndPaintAsync(layout_and_paint_callback);
-  if (blink::WebPagePopup* popup = web_widget->pagePopup()) {
-    layout_and_paint_callback->set_wait_for_popup(true);
-    popup->layoutAndPaintAsync(layout_and_paint_callback);
-  }
-}
-
-}  // namespace test_runner