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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_APP_CHROME_MAIN_DELEGATE_H_
#define CHROME_APP_CHROME_MAIN_DELEGATE_H_
#include <memory>
#include <optional>
#include <variant>
#include <vector>
#include "base/time/time.h"
#include "build/build_config.h"
#include "chrome/app/startup_timestamps.h"
#include "chrome/browser/startup_data.h"
#include "chrome/common/chrome_content_client.h"
#include "components/memory_system/memory_system.h"
#include "content/public/app/content_main_delegate.h"
namespace base {
class CommandLine;
}
namespace tracing {
class TracingSamplerProfiler;
}
class ChromeContentBrowserClient;
class ChromeContentUtilityClient;
class MainThreadStackSamplingProfiler;
// Chrome implementation of ContentMainDelegate.
class ChromeMainDelegate : public content::ContentMainDelegate {
public:
static const char* const kNonWildcardDomainNonPortSchemes[];
static const size_t kNonWildcardDomainNonPortSchemesSize;
#if BUILDFLAG(IS_ANDROID)
ChromeMainDelegate();
#endif
// `timestamps.exe_entry_point_ticks` is the time at which the main function
// of the executable was entered. On Windows, StartupTimestamps contains
// timing information for calls to base::PreReadFile. `timestamps`' lifetime
// does not need to last beyond the constructor call.
explicit ChromeMainDelegate(const StartupTimestamps& timestamps);
ChromeMainDelegate(const ChromeMainDelegate&) = delete;
ChromeMainDelegate& operator=(const ChromeMainDelegate&) = delete;
~ChromeMainDelegate() override;
protected:
// content::ContentMainDelegate:
std::optional<int> BasicStartupComplete() override;
void PreSandboxStartup() override;
void SandboxInitialized(const std::string& process_type) override;
std::variant<int, content::MainFunctionParams> RunProcess(
const std::string& process_type,
content::MainFunctionParams main_function_params) override;
void ProcessExiting(const std::string& process_type) override;
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
void ZygoteStarting(std::vector<std::unique_ptr<content::ZygoteForkDelegate>>*
delegates) override;
void ZygoteForked() override;
#endif
std::optional<int> PreBrowserMain() override;
std::optional<int> PostEarlyInitialization(InvokedIn invoked_in) override;
bool ShouldCreateFeatureList(InvokedIn invoked_in) override;
bool ShouldInitializeMojo(InvokedIn invoked_in) override;
void CreateThreadPool(std::string_view name) override;
#if BUILDFLAG(IS_WIN)
bool ShouldHandleConsoleControlEvents() override;
#endif
content::ContentClient* CreateContentClient() override;
content::ContentBrowserClient* CreateContentBrowserClient() override;
content::ContentGpuClient* CreateContentGpuClient() override;
content::ContentRendererClient* CreateContentRendererClient() override;
content::ContentUtilityClient* CreateContentUtilityClient() override;
// Initialization that happens in all process types.
void CommonEarlyInitialization();
// Initializes |tracing_sampler_profiler_|. Deletes any existing
// |tracing_sampler_profiler_| as well.
void SetupTracing();
#if BUILDFLAG(IS_MAC)
void InitMacCrashReporter(const base::CommandLine& command_line,
const std::string& process_type);
void SetUpInstallerPreferences(const base::CommandLine& command_line);
#endif // BUILDFLAG(IS_MAC)
void InitializeMemorySystem();
std::unique_ptr<ChromeContentBrowserClient> chrome_content_browser_client_;
std::unique_ptr<ChromeContentUtilityClient> chrome_content_utility_client_;
std::unique_ptr<tracing::TracingSamplerProfiler> tracing_sampler_profiler_;
ChromeContentClient chrome_content_client_;
memory_system::MemorySystem memory_system_;
#if !BUILDFLAG(IS_ANDROID)
// The sampling profiler exists until the `ChromeContentBrowserClient` is
// created and ownership is passed to it.
std::unique_ptr<MainThreadStackSamplingProfiler> sampling_profiler_;
#endif
};
#endif // CHROME_APP_CHROME_MAIN_DELEGATE_H_
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