Reland of 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(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 106 matching lines @@
 }
 
 void HeadlessContentMainDelegate::InitCrashReporter(
     const base::CommandLine& command_line) {
   const std::string process_type =
       command_line.GetSwitchValueASCII(switches::kProcessType);
   crash_reporter::SetCrashReporterClient(g_headless_crash_client.Pointer());
   g_headless_crash_client.Pointer()->set_crash_dumps_dir(
       browser_->options()->crash_dumps_dir);
 
-#if !defined(OS_MACOSX)
+#if defined(OS_LINUX)
   if (!browser_->options()->enable_crash_reporter) {
     DCHECK(!breakpad::IsCrashReporterEnabled());
     return;
   }
 #if defined(HEADLESS_USE_BREAKPAD)
   if (process_type != switches::kZygoteProcess)
     breakpad::InitCrashReporter(process_type);
 #endif  // defined(HEADLESS_USE_BREAKPAD)
-#endif  // !defined(OS_MACOSX)
+#endif  // !defined(OS_LINUX)
 }
 
 void HeadlessContentMainDelegate::PreSandboxStartup() {
   const base::CommandLine& command_line(
       *base::CommandLine::ForCurrentProcess());
 #if defined(OS_WIN)
   // Windows always needs to initialize logging, otherwise you get a renderer
   // crash.
   InitLogging(command_line);
 #else
@@ skipping 83 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