8012e46931
This is a follow up CL for: https://crrev.com/c/1115783. In this CL, we use ScopedExecutionFence to prevents tasks running between the peorid from BrowserMainRunner is instantiated to BrowserMainLoop::CreateThreads() is called. Bug: 846846 Change-Id: I9dec8415e45f901c5883c196ab867c0ea4928594 Reviewed-on: https://chromium-review.googlesource.com/c/1174955 Commit-Queue: Xi Han <hanxi@chromium.org> Reviewed-by: John Abd-El-Malek <jam@chromium.org> Reviewed-by: Gabriel Charette <gab@chromium.org> Cr-Commit-Position: refs/heads/master@{#597255}
66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
// Copyright 2018 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CONTENT_BROWSER_BROWSER_MAIN_RUNNER_IMPL_H_
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#define CONTENT_BROWSER_BROWSER_MAIN_RUNNER_IMPL_H_
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#include <memory>
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#include "base/macros.h"
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#include "base/task/task_scheduler/task_scheduler.h"
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#include "build/build_config.h"
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#include "content/public/browser/browser_main_runner.h"
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#if defined(OS_WIN)
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namespace ui {
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class ScopedOleInitializer;
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}
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#endif
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namespace content {
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class BrowserMainLoop;
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class NotificationServiceImpl;
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class BrowserMainRunnerImpl : public BrowserMainRunner {
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public:
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static BrowserMainRunnerImpl* Create();
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BrowserMainRunnerImpl();
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~BrowserMainRunnerImpl() override;
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// BrowserMainRunner:
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int Initialize(const MainFunctionParams& parameters) override;
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#if defined(OS_ANDROID)
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void SynchronouslyFlushStartupTasks() override;
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#endif
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int Run() override;
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void Shutdown() override;
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private:
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// True if we have started to initialize the runner.
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bool initialization_started_;
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// True if the runner has been shut down.
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bool is_shutdown_;
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// Prevents execution of TaskScheduler tasks from the moment content is
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// entered. Handed off to |main_loop_| later so it can decide when to release
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// worker threads again.
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std::unique_ptr<base::TaskScheduler::ScopedExecutionFence>
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scoped_execution_fence_;
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std::unique_ptr<NotificationServiceImpl> notification_service_;
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std::unique_ptr<BrowserMainLoop> main_loop_;
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#if defined(OS_WIN)
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std::unique_ptr<ui::ScopedOleInitializer> ole_initializer_;
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#endif
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DISALLOW_COPY_AND_ASSIGN(BrowserMainRunnerImpl);
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};
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} // namespace content
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#endif // CONTENT_BROWSER_BROWSER_MAIN_RUNNER_IMPL_H_
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