Add --headless flag to Windows

headless/lib/headless_content_main_delegate.cc

 // Copyright 2015 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 "headless/lib/headless_content_main_delegate.h"
 
 #include <utility>
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/trace_event/trace_event.h"
 #include "components/crash/content/app/breakpad_linux.h"
 #include "content/public/browser/browser_main_runner.h"
 #include "content/public/common/content_switches.h"
 #include "headless/lib/browser/headless_browser_impl.h"
 #include "headless/lib/browser/headless_content_browser_client.h"
 #include "headless/lib/headless_crash_reporter_client.h"
 #include "headless/lib/headless_macros.h"
-#include "headless/lib/renderer/headless_content_renderer_client.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/gfx/switches.h"
 #include "ui/gl/gl_switches.h"
 #include "ui/ozone/public/ozone_switches.h"
 
 #ifdef HEADLESS_USE_EMBEDDED_RESOURCES
 #include "headless/embedded_resource_pak.h"
 #endif
 
 #if defined(OS_MACOSX)
 #include "components/crash/content/app/crashpad.h"
 #endif
 
+#if !defined(CHROME_MULTIPLE_DLL_BROWSER)
+#include "headless/lib/renderer/headless_content_renderer_client.h"
+#endif
+
 namespace headless {
 namespace {
 // Keep in sync with content/common/content_constants_internal.h.
 // TODO(skyostil): Add a tracing test for this.
 const int kTraceEventBrowserProcessSortIndex = -6;
 
 HeadlessContentMainDelegate* g_current_headless_content_main_delegate = nullptr;
 
 base::LazyInstance<HeadlessCrashReporterClient>::Leaky g_headless_crash_client =
     LAZY_INSTANCE_INITIALIZER;
@@ skipping 38 matching lines @@
   } else {
     command_line->AppendSwitch(switches::kDisableGpu);
   }
 
   SetContentClient(&content_client_);
   return false;
 }
 
 void HeadlessContentMainDelegate::InitLogging(
     const base::CommandLine& command_line) {
+  const std::string process_type =
+      command_line.GetSwitchValueASCII(switches::kProcessType);
 #if !defined(OS_WIN)
   if (!command_line.HasSwitch(switches::kEnableLogging))
     return;
-#endif
+#else
+  // Child processes in Windows are not able to initialize logging.
+  if (!process_type.empty())
+    return;
+#endif  // !defined(OS_WIN)
 
   logging::LoggingDestination log_mode;
   base::FilePath log_filename(FILE_PATH_LITERAL("chrome_debug.log"));
   if (command_line.GetSwitchValueASCII(switches::kEnableLogging) == "stderr") {
     log_mode = logging::LOG_TO_SYSTEM_DEBUG_LOG;
   } else {
     base::FilePath custom_filename(
         command_line.GetSwitchValuePath(switches::kEnableLogging));
     if (custom_filename.empty()) {
       log_mode = logging::LOG_TO_ALL;
@@ skipping 24 matching lines @@
   } else {
     log_path = log_filename;
   }
 
   std::string filename;
   std::unique_ptr<base::Environment> env(base::Environment::Create());
   if (env->GetVar(kLogFileName, &filename) && !filename.empty()) {
     log_path = base::FilePath::FromUTF8Unsafe(filename);
   }
 
-  const std::string process_type =
-      command_line.GetSwitchValueASCII(switches::kProcessType);
-
   settings.logging_dest = log_mode;
   settings.log_file = log_path.value().c_str();
   settings.lock_log = logging::DONT_LOCK_LOG_FILE;
   settings.delete_old = process_type.empty() ? logging::DELETE_OLD_LOG_FILE
                                              : logging::APPEND_TO_OLD_LOG_FILE;
   bool success = logging::InitLogging(settings);
   DCHECK(success);
 }
 
 void HeadlessContentMainDelegate::InitCrashReporter(
@@ skipping 28 matching lines @@
   if (command_line.HasSwitch(switches::kEnableLogging))
     InitLogging(command_line);
 #endif  // defined(OS_WIN)
   InitCrashReporter(command_line);
   InitializeResourceBundle();
 }
 
 int HeadlessContentMainDelegate::RunProcess(
     const std::string& process_type,
     const content::MainFunctionParams& main_function_params) {
+// TODO(dvallet): Consider making a Windows specific class to make specific
+// child builds clearer.
+#if !defined(CHROME_MULTIPLE_DLL_CHILD)
+
   if (!process_type.empty())
     return -1;
 
   base::trace_event::TraceLog::GetInstance()->SetProcessName("HeadlessBrowser");
   base::trace_event::TraceLog::GetInstance()->SetProcessSortIndex(
       kTraceEventBrowserProcessSortIndex);
 
   std::unique_ptr<content::BrowserMainRunner> browser_runner(
       content::BrowserMainRunner::Create());
 
   int exit_code = browser_runner->Initialize(main_function_params);
   DCHECK_LT(exit_code, 0) << "content::BrowserMainRunner::Initialize failed in "
                              "HeadlessContentMainDelegate::RunProcess";
 
   browser_->RunOnStartCallback();
   browser_runner->Run();
   browser_.reset();
   browser_runner->Shutdown();
 
   // Return value >=0 here to disable calling content::BrowserMain.
   return 0;
+#else
+  return -1;
+#endif  // !defined(CHROME_MULTIPLE_DLL_CHILD)
 }
 
 #if !defined(OS_MACOSX) && defined(OS_POSIX) && !defined(OS_ANDROID)
 void HeadlessContentMainDelegate::ZygoteForked() {
   const base::CommandLine& command_line(
       *base::CommandLine::ForCurrentProcess());
   const std::string process_type =
       command_line.GetSwitchValueASCII(switches::kProcessType);
   // Unconditionally try to turn on crash reporting since we do not have access
   // to the latest browser options at this point when testing. Breakpad will
@@ skipping 40 matching lines @@
   if (!base::PathExists(pak_file))
     pak_file = dir_module.Append(FILE_PATH_LITERAL("Resources/resources.pak"));
 #endif
   ResourceBundle::GetSharedInstance().AddDataPackFromPath(
       pak_file, ui::SCALE_FACTOR_NONE);
 #endif
 }
 
 content::ContentBrowserClient*
 HeadlessContentMainDelegate::CreateContentBrowserClient() {
+#if defined(CHROME_MULTIPLE_DLL_CHILD)
+  return nullptr;
+#else
   browser_client_ =
       base::MakeUnique<HeadlessContentBrowserClient>(browser_.get());
   return browser_client_.get();
+#endif
 }
 
 content::ContentRendererClient*
 HeadlessContentMainDelegate::CreateContentRendererClient() {
+#if defined(CHROME_MULTIPLE_DLL_BROWSER)
+  return nullptr;
+#else
   renderer_client_ = base::MakeUnique<HeadlessContentRendererClient>();
   return renderer_client_.get();
+#endif
 }
 
 }  // namespace headless