Convert enable_plugins to a buildflag header.

content/browser/browser_main_loop.cc

 // 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.
 
 #include "content/browser/browser_main_loop.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 160 matching lines @@
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 #include "content/browser/renderer_host/render_sandbox_host_linux.h"
 #include "content/browser/zygote_host/zygote_host_impl_linux.h"
 
 #if !defined(OS_ANDROID)
 #include "content/public/browser/zygote_handle_linux.h"
 #endif  // !defined(OS_ANDROID)
 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
 
 
-#if defined(ENABLE_PLUGINS)
+#if BUILDFLAG(ENABLE_PLUGINS)
 #include "content/browser/plugin_service_impl.h"
 #endif
 
 #if defined(ENABLE_MOJO_CDM) && BUILDFLAG(ENABLE_PEPPER_CDMS)
 #include "content/browser/media/cdm_service_impl.h"
 #endif
 
 #if defined(USE_X11)
 #include "gpu/config/gpu_driver_bug_workaround_type.h"
 #include "ui/base/x/x11_util_internal.h"  // nogncheck
@@ skipping 556 matching lines @@
   // the second time.
   base::FeatureList::InitializeInstance(
       command_line->GetSwitchValueASCII(switches::kEnableFeatures),
       command_line->GetSwitchValueASCII(switches::kDisableFeatures));
 
   InitializeMemoryManagementComponent();
 
   if (base::FeatureList::IsEnabled(features::kMemoryCoordinator))
     MemoryCoordinator::GetInstance()->Start();
 
-#if defined(ENABLE_PLUGINS)
+#if BUILDFLAG(ENABLE_PLUGINS)
   // Prior to any processing happening on the IO thread, we create the
   // plugin service as it is predominantly used from the IO thread,
   // but must be created on the main thread. The service ctor is
   // inexpensive and does not invoke the io_thread() accessor.
   {
     TRACE_EVENT0("startup", "BrowserMainLoop::CreateThreads:PluginService");
     PluginService::GetInstance()->Init();
   }
 #endif
 
@@ skipping 837 matching lines @@
     scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner =
         audio_thread_->task_runner();
     audio_manager_ = media::AudioManager::Create(std::move(audio_task_runner),
                                                  std::move(worker_task_runner),
                                                  MediaInternals::GetInstance());
   }
   CHECK(audio_manager_);
 }
 
 }  // namespace content