Revert of Move some basic early process init into Service Manager

services/service_manager/embedder/main.cc

Index: services/service_manager/embedder/main.cc
diff --git a/services/service_manager/embedder/main.cc b/services/service_manager/embedder/main.cc
deleted file mode 100644
index 30761d139bb5bd7761809d924c2e0efda6b974ed..0000000000000000000000000000000000000000
--- a/services/service_manager/embedder/main.cc
+++ /dev/null
@@ -1,196 +0,0 @@
-// Copyright 2017 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 "services/service_manager/embedder/main.h"
-#include "base/allocator/features.h"
-#include "base/command_line.h"
-#include "base/debug/activity_tracker.h"
-#include "base/logging.h"
-#include "base/memory/ptr_util.h"
-#include "base/process/memory.h"
-#include "mojo/edk/embedder/embedder.h"
-#include "services/service_manager/embedder/main_delegate.h"
-#include "services/service_manager/embedder/set_process_title.h"
-#include "services/service_manager/embedder/shared_file_util.h"
-#include "services/service_manager/embedder/switches.h"
-
-#if defined(OS_WIN)
-#include "base/win/process_startup_helper.h"
-#include "ui/base/win/atl_module.h"
-#endif
-
-#if defined(OS_POSIX) && !defined(OS_ANDROID)
-#include <locale.h>
-#include <signal.h>
-
-#include "base/file_descriptor_store.h"
-#include "base/posix/global_descriptors.h"
-#endif
-
-#if defined(OS_MACOSX)
-#include "base/mac/scoped_nsautorelease_pool.h"
-#include "services/service_manager/embedder/mac_init.h"
-
-#if BUILDFLAG(USE_EXPERIMENTAL_ALLOCATOR_SHIM)
-#include "base/allocator/allocator_shim.h"
-#endif
-#endif  // defined(OS_MACOSX)
-
-namespace service_manager {
-
-namespace {
-
-// Maximum message size allowed to be read from a Mojo message pipe in any
-// service manager embedder process.
-constexpr size_t kMaximumMojoMessageSize = 128 * 1024 * 1024;
-
-#if defined(OS_POSIX) && !defined(OS_ANDROID)
-
-// Setup signal-handling state: resanitize most signals, ignore SIGPIPE.
-void SetupSignalHandlers() {
-  // Sanitise our signal handling state. Signals that were ignored by our
-  // parent will also be ignored by us. We also inherit our parent's sigmask.
-  sigset_t empty_signal_set;
-  CHECK_EQ(0, sigemptyset(&empty_signal_set));
-  CHECK_EQ(0, sigprocmask(SIG_SETMASK, &empty_signal_set, NULL));
-
-  struct sigaction sigact;
-  memset(&sigact, 0, sizeof(sigact));
-  sigact.sa_handler = SIG_DFL;
-  static const int signals_to_reset[] = {
-      SIGHUP,  SIGINT,  SIGQUIT, SIGILL, SIGABRT, SIGFPE, SIGSEGV,
-      SIGALRM, SIGTERM, SIGCHLD, SIGBUS, SIGTRAP};  // SIGPIPE is set below.
-  for (unsigned i = 0; i < arraysize(signals_to_reset); i++) {
-    CHECK_EQ(0, sigaction(signals_to_reset[i], &sigact, NULL));
-  }
-
-  // Always ignore SIGPIPE.  We check the return value of write().
-  CHECK_NE(SIG_ERR, signal(SIGPIPE, SIG_IGN));
-}
-
-void PopulateFDsFromCommandLine() {
-  const std::string& shared_file_param =
-      base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-          switches::kSharedFiles);
-  if (shared_file_param.empty())
-    return;
-
-  base::Optional<std::map<int, std::string>> shared_file_descriptors =
-      service_manager::ParseSharedFileSwitchValue(shared_file_param);
-  if (!shared_file_descriptors)
-    return;
-
-  for (const auto& descriptor : *shared_file_descriptors) {
-    base::MemoryMappedFile::Region region;
-    const std::string& key = descriptor.second;
-    base::ScopedFD fd = base::GlobalDescriptors::GetInstance()->TakeFD(
-        descriptor.first, &region);
-    base::FileDescriptorStore::GetInstance().Set(key, std::move(fd), region);
-  }
-}
-
-#endif  // defined(OS_POSIX) && !defined(OS_ANDROID)
-
-}  // namespace
-
-MainParams::MainParams(MainDelegate* delegate) : delegate(delegate) {}
-
-MainParams::~MainParams() {}
-
-int Main(const MainParams& params) {
-  MainDelegate* delegate = params.delegate;
-  DCHECK(delegate);
-
-#if defined(OS_MACOSX) && BUILDFLAG(USE_EXPERIMENTAL_ALLOCATOR_SHIM)
-  base::allocator::InitializeAllocatorShim();
-#endif
-  base::EnableTerminationOnOutOfMemory();
-
-#if defined(OS_WIN)
-  base::win::RegisterInvalidParamHandler();
-  ui::win::CreateATLModuleIfNeeded();
-#endif  // defined(OS_WIN)
-
-// On Android setlocale() is not supported, and we don't override the signal
-// handlers so we can get a stack trace when crashing.
-#if defined(OS_POSIX) && !defined(OS_ANDROID)
-  // Set C library locale to make sure CommandLine can parse argument values in
-  // the correct encoding.
-  setlocale(LC_ALL, "");
-
-  SetupSignalHandlers();
-#endif
-
-#if !defined(OS_ANDROID)
-  // On Android, the command line is initialized when library is loaded.
-  int argc = 0;
-  const char** argv = nullptr;
-
-#if defined(OS_POSIX)
-  // argc/argv are ignored on Windows; see command_line.h for details.
-  argc = params.argc;
-  argv = params.argv;
-#endif
-
-  base::CommandLine::Init(argc, argv);
-
-#if defined(OS_POSIX)
-  PopulateFDsFromCommandLine();
-#endif
-
-  base::EnableTerminationOnHeapCorruption();
-
-#if defined(OS_WIN)
-  base::win::SetupCRT(*base::CommandLine::ForCurrentProcess());
-#endif
-
-  SetProcessTitleFromCommandLine(argv);
-#endif  // !defined(OS_ANDROID)
-
-  MainDelegate::InitializeParams init_params;
-
-#if defined(OS_MACOSX)
-  // We need this pool for all the objects created before we get to the event
-  // loop, but we don't want to leave them hanging around until the app quits.
-  // Each "main" needs to flush this pool right before it goes into its main
-  // event loop to get rid of the cruft.
-  std::unique_ptr<base::mac::ScopedNSAutoreleasePool> autorelease_pool =
-      base::MakeUnique<base::mac::ScopedNSAutoreleasePool>();
-  init_params.autorelease_pool = autorelease_pool.get();
-  InitializeMac();
-#endif
-
-  mojo::edk::SetMaxMessageSize(kMaximumMojoMessageSize);
-  mojo::edk::Init();
-
-  base::debug::GlobalActivityTracker* tracker =
-      base::debug::GlobalActivityTracker::Get();
-  int exit_code = delegate->Initialize(init_params);
-  if (exit_code >= 0) {
-    if (tracker) {
-      tracker->SetProcessPhase(
-          base::debug::GlobalActivityTracker::PROCESS_LAUNCH_FAILED);
-      tracker->process_data().SetInt("exit-code", exit_code);
-    }
-    return exit_code;
-  }
-
-  exit_code = delegate->Run();
-  if (tracker) {
-    if (exit_code == 0) {
-      tracker->SetProcessPhaseIfEnabled(
-          base::debug::GlobalActivityTracker::PROCESS_EXITED_CLEANLY);
-    } else {
-      tracker->SetProcessPhaseIfEnabled(
-          base::debug::GlobalActivityTracker::PROCESS_EXITED_WITH_CODE);
-      tracker->process_data().SetInt("exit-code", exit_code);
-    }
-  }
-
-  delegate->ShutDown();
-
-  return exit_code;
-}
-
-}  // namespace service_manager