cef/patch/patches/content_main_654986.patch

diff --git content/app/content_main.cc content/app/content_main.cc
index e463c4d677b1..5fbc0a732dee 100644
--- content/app/content_main.cc
+++ content/app/content_main.cc
@@ -206,15 +206,10 @@ void InitializeMojo(mojo::core::Configuration* config) {
 
 }  // namespace
 
-int RunContentProcess(const ContentMainParams& params,
-                      ContentMainRunner* content_main_runner) {
-  ContentMainParams content_main_params(params);
-
+int ContentMainInitialize(ContentMainParams& params,
+                          ContentMainRunner* content_main_runner) {
   int exit_code = -1;
   base::debug::GlobalActivityTracker* tracker = nullptr;
-#if defined(OS_MAC)
-  std::unique_ptr<base::mac::ScopedNSAutoreleasePool> autorelease_pool;
-#endif
 
   // A flag to indicate whether Main() has been called before. On Android, we
   // may re-run Main() without restarting the browser process. This flag
@@ -300,8 +295,7 @@ int RunContentProcess(const ContentMainParams& params,
     // 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.
-    autorelease_pool = std::make_unique<base::mac::ScopedNSAutoreleasePool>();
-    content_main_params.autorelease_pool = autorelease_pool.get();
+    params.autorelease_pool = std::make_unique<base::mac::ScopedNSAutoreleasePool>();
     InitializeMac();
 #endif
 
@@ -311,7 +305,7 @@ int RunContentProcess(const ContentMainParams& params,
 
     ui::RegisterPathProvider();
     tracker = base::debug::GlobalActivityTracker::Get();
-    exit_code = content_main_runner->Initialize(content_main_params);
+    exit_code = content_main_runner->Initialize(params);
 
     if (exit_code >= 0) {
       if (tracker) {
@@ -370,8 +364,16 @@ int RunContentProcess(const ContentMainParams& params,
 
   if (IsSubprocess())
     CommonSubprocessInit();
-  exit_code = content_main_runner->Run(params.minimal_browser_mode);
 
+  return exit_code;
+}
+
+int ContentMainRun(ContentMainParams& params,
+                   ContentMainRunner* content_main_runner) {
+  int exit_code = content_main_runner->Run(params.minimal_browser_mode);
+
+  base::debug::GlobalActivityTracker* tracker =
+      base::debug::GlobalActivityTracker::Get();
   if (tracker) {
     if (exit_code == 0) {
       tracker->SetProcessPhaseIfEnabled(
@@ -382,19 +384,33 @@ int RunContentProcess(const ContentMainParams& params,
       tracker->process_data().SetInt("exit-code", exit_code);
     }
   }
+  
+  return exit_code;
+}
 
+void ContentMainShutdown(ContentMainParams& params,
+                         ContentMainRunner* content_main_runner) {
 #if defined(OS_MAC)
-  autorelease_pool.reset();
+  params.autorelease_pool.reset();
 #endif
 
 #if !defined(OS_ANDROID)
   content_main_runner->Shutdown();
 #endif
+}
+
+int RunContentProcess(ContentMainParams& params,
+                      ContentMainRunner* content_main_runner) {
+  int exit_code = ContentMainInitialize(params, content_main_runner);
+  if (exit_code >= 0)
+    return exit_code;
+  exit_code = ContentMainRun(params, content_main_runner);
+  ContentMainShutdown(params, content_main_runner);
 
   return exit_code;
 }
 
-int ContentMain(const ContentMainParams& params) {
+int ContentMain(ContentMainParams& params) {
   auto runner = ContentMainRunner::Create();
   return RunContentProcess(params, runner.get());
 }
diff --git content/app/content_main_runner_impl.cc content/app/content_main_runner_impl.cc
index a85c25303dfc..8fdc214608fc 100644
--- content/app/content_main_runner_impl.cc
+++ content/app/content_main_runner_impl.cc
@@ -45,6 +45,7 @@
 #include "base/task/post_task.h"
 #include "base/task/thread_pool/thread_pool_instance.h"
 #include "base/threading/hang_watcher.h"
+#include "base/threading/thread_restrictions.h"
 #include "base/trace_event/trace_event.h"
 #include "components/discardable_memory/service/discardable_shared_memory_manager.h"
 #include "components/download/public/common/download_task_runner.h"
@@ -571,7 +572,7 @@ int ContentMainRunnerImpl::Initialize(const ContentMainParams& params) {
 #else  // !OS_WIN
 
 #if defined(OS_MAC)
-  autorelease_pool_ = params.autorelease_pool;
+  autorelease_pool_ = params.autorelease_pool.get();
 #endif  // defined(OS_MAC)
 
 #if defined(OS_ANDROID)
@@ -1010,6 +1011,11 @@ void ContentMainRunnerImpl::Shutdown() {
   is_shutdown_ = true;
 }
 
+void ContentMainRunnerImpl::ShutdownOnUIThread() {
+  base::ScopedAllowBaseSyncPrimitivesForTesting allow_wait;
+  discardable_shared_memory_manager_.reset();
+}
+
 // static
 std::unique_ptr<ContentMainRunner> ContentMainRunner::Create() {
   return ContentMainRunnerImpl::Create();
diff --git content/app/content_main_runner_impl.h content/app/content_main_runner_impl.h
index 3eb986f3c7d4..58d1883f7948 100644
--- content/app/content_main_runner_impl.h
+++ content/app/content_main_runner_impl.h
@@ -13,6 +13,7 @@
 #include "base/threading/hang_watcher.h"
 #include "build/build_config.h"
 #include "content/browser/startup_data_impl.h"
+#include "content/common/content_export.h"
 #include "content/public/app/content_main.h"
 #include "content/public/app/content_main_runner.h"
 #include "content/public/common/main_function_params.h"
@@ -37,7 +38,7 @@ class ContentMainDelegate;
 struct ContentMainParams;
 class ServiceManagerEnvironment;
 
-class ContentMainRunnerImpl : public ContentMainRunner {
+class CONTENT_EXPORT ContentMainRunnerImpl : public ContentMainRunner {
  public:
   static std::unique_ptr<ContentMainRunnerImpl> Create();
 
@@ -51,6 +52,8 @@ class ContentMainRunnerImpl : public ContentMainRunner {
   int Run(bool start_service_manager_only) override;
   void Shutdown() override;
 
+  void ShutdownOnUIThread();
+
  private:
   int RunServiceManager(MainFunctionParams& main_function_params,
                         bool start_service_manager_only);
diff --git content/common/set_process_title.cc content/common/set_process_title.cc
index 8b829a488773..a69a08869728 100644
--- content/common/set_process_title.cc
+++ content/common/set_process_title.cc
@@ -54,7 +54,7 @@ void SetProcessTitleFromCommandLine(const char** main_argv) {
   bool have_argv0 = false;
 
 #if defined(OS_LINUX) || defined(OS_CHROMEOS)
-  DCHECK_EQ(base::PlatformThread::CurrentId(), getpid());
+  // DCHECK_EQ(base::PlatformThread::CurrentId(), getpid());
 
   if (main_argv)
     setproctitle_init(main_argv);
diff --git content/public/app/content_main.h content/public/app/content_main.h
index 7384f3276f38..b84127a62b81 100644
--- content/public/app/content_main.h
+++ content/public/app/content_main.h
@@ -5,6 +5,7 @@
 #ifndef CONTENT_PUBLIC_APP_CONTENT_MAIN_H_
 #define CONTENT_PUBLIC_APP_CONTENT_MAIN_H_
 
+#include <memory>
 #include <stddef.h>
 
 #include "base/callback_forward.h"
@@ -64,11 +65,20 @@ struct ContentMainParams {
 
 #if defined(OS_MAC)
   // The outermost autorelease pool to pass to main entry points.
-  base::mac::ScopedNSAutoreleasePool* autorelease_pool = nullptr;
+  std::unique_ptr<base::mac::ScopedNSAutoreleasePool> autorelease_pool;
 #endif
 };
 
-CONTENT_EXPORT int RunContentProcess(const ContentMainParams& params,
+// Split RunContentProcess() into separate stages.
+CONTENT_EXPORT int ContentMainInitialize(
+    ContentMainParams& params,
+    ContentMainRunner* content_main_runner);
+CONTENT_EXPORT int ContentMainRun(ContentMainParams& params,
+                                  ContentMainRunner* content_main_runner);
+CONTENT_EXPORT void ContentMainShutdown(ContentMainParams& params,
+                                        ContentMainRunner* content_main_runner);
+
+CONTENT_EXPORT int RunContentProcess(ContentMainParams& params,
                                      ContentMainRunner* content_main_runner);
 
 #if defined(OS_ANDROID)
@@ -88,7 +98,7 @@ CONTENT_EXPORT ContentMainDelegate* GetContentMainDelegateForTesting();
 // initial setup for every process. The embedder has a chance to customize
 // startup using the ContentMainDelegate interface. The embedder can also pass
 // in null for |delegate| if they don't want to override default startup.
-CONTENT_EXPORT int ContentMain(const ContentMainParams& params);
+CONTENT_EXPORT int ContentMain(ContentMainParams& params);
 #endif
 
 }  // namespace content