Move some basic early process init into Service Manager

content/public/app/content_main.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_PUBLIC_APP_CONTENT_MAIN_H_
 #define CONTENT_PUBLIC_APP_CONTENT_MAIN_H_
 
 #include <stddef.h>
 
 #include "base/callback_forward.h"
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #if defined(USE_AURA)
 #include "ui/aura/env.h"
 #endif
 
+namespace base {
+namespace mac {
+class ScopedNSAutoreleasePool;
+}
+}
+
 namespace sandbox {
 struct SandboxInterfaceInfo;
 }
 
 namespace content {
 class ContentMainDelegate;
 
 struct ContentMainParams {
   explicit ContentMainParams(ContentMainDelegate* delegate)
-      : delegate(delegate),
-#if defined(OS_WIN)
-        instance(NULL),
-        sandbox_info(NULL),
-#elif !defined(OS_ANDROID)
-        argc(0),
-        argv(NULL),
-#endif
-        ui_task(NULL) {
-  }
+      : delegate(delegate) {}
 
   ContentMainDelegate* delegate;
 
 #if defined(OS_WIN)
-  HINSTANCE instance;
+  HINSTANCE instance = nullptr;
 
   // |sandbox_info| should be initialized using InitializeSandboxInfo from
   // content_main_win.h
-  sandbox::SandboxInterfaceInfo* sandbox_info;
+  sandbox::SandboxInterfaceInfo* sandbox_info = nullptr;
 #elif !defined(OS_ANDROID)
-  int argc;
-  const char** argv;
+  int argc = 0;
+  const char** argv = nullptr;
 #endif
 
   // Used by browser_tests. If non-null BrowserMain schedules this task to run
   // on the MessageLoop. It's owned by the test code.
-  base::Closure* ui_task;
+  base::Closure* ui_task = nullptr;
 
 #if defined(USE_AURA)
   aura::Env::Mode env_mode = aura::Env::Mode::LOCAL;
 #endif
+
+#if defined(OS_MACOSX)
+  // The outermost autorelease pool to pass to main entry points.
+  base::mac::ScopedNSAutoreleasePool* autorelease_pool = nullptr;
+#endif
 };
 
 #if defined(OS_ANDROID)
 // In the Android, the content main starts from ContentMain.java, This function
 // provides a way to set the |delegate| as ContentMainDelegate for
 // ContentMainRunner.
 // This should only be called once before ContentMainRunner actually running.
 // The ownership of |delegate| is transferred.
 CONTENT_EXPORT void SetContentMainDelegate(ContentMainDelegate* delegate);
 #else
 // ContentMain should be called from the embedder's main() function to do the
 // 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);
 #endif
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_APP_CONTENT_MAIN_H_