Convert enable_plugins to a buildflag header.

content/zygote/zygote_main_linux.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/zygote/zygote_main.h"
 
 #include <dlfcn.h>
 #include <fcntl.h>
 #include <pthread.h>
 #include <signal.h>
@@ skipping 26 matching lines @@
 #include "content/common/child_process_sandbox_support_impl_linux.h"
 #include "content/common/font_config_ipc_linux.h"
 #include "content/common/sandbox_linux/sandbox_debug_handling_linux.h"
 #include "content/common/sandbox_linux/sandbox_linux.h"
 #include "content/common/zygote_commands_linux.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/main_function_params.h"
 #include "content/public/common/sandbox_linux.h"
 #include "content/public/common/zygote_fork_delegate_linux.h"
 #include "content/zygote/zygote_linux.h"
+#include "ppapi/features/features.h"
 #include "sandbox/linux/services/credentials.h"
 #include "sandbox/linux/services/init_process_reaper.h"
 #include "sandbox/linux/services/namespace_sandbox.h"
 #include "sandbox/linux/services/thread_helpers.h"
 #include "sandbox/linux/suid/client/setuid_sandbox_client.h"
 #include "third_party/WebKit/public/web/linux/WebFontRendering.h"
 #include "third_party/boringssl/src/include/openssl/crypto.h"
 #include "third_party/boringssl/src/include/openssl/rand.h"
 #include "third_party/icu/source/i18n/unicode/timezone.h"
 #include "third_party/skia/include/ports/SkFontConfigInterface.h"
 #include "third_party/skia/include/ports/SkFontMgr_android.h"
 
 #if defined(OS_LINUX)
 #include <sys/prctl.h>
 #endif
 
-#if defined(ENABLE_PLUGINS)
+#if BUILDFLAG(ENABLE_PLUGINS)
 #include "content/common/pepper_plugin_list.h"
 #include "content/public/common/pepper_plugin_info.h"
 #endif
 
 #if defined(ENABLE_WEBRTC)
 #include "third_party/webrtc_overrides/init_webrtc.h"
 #endif
 
 #if defined(SANITIZER_COVERAGE)
 #include <sanitizer/common_interface_defs.h>
@@ skipping 230 matching lines @@
   CHECK_EQ(0, pthread_once(&g_libc_localtime_funcs_guard,
                            InitLibcLocaltimeFunctions));
   struct tm* res = g_libc_localtime64_r(timep, result);
 #if defined(MEMORY_SANITIZER)
   if (res) __msan_unpoison(res, sizeof(*res));
   if (res->tm_zone) __msan_unpoison_string(res->tm_zone);
 #endif
   return res;
 }
 
-#if defined(ENABLE_PLUGINS)
+#if BUILDFLAG(ENABLE_PLUGINS)
 // Loads the (native) libraries but does not initialize them (i.e., does not
 // call PPP_InitializeModule). This is needed by the zygote on Linux to get
 // access to the plugins before entering the sandbox.
 void PreloadPepperPlugins() {
   std::vector<PepperPluginInfo> plugins;
   ComputePepperPluginList(&plugins);
   for (const auto& plugin : plugins) {
     if (!plugin.is_internal) {
       base::NativeLibraryLoadError error;
       base::NativeLibrary library = base::LoadNativeLibrary(plugin.path,
@@ skipping 25 matching lines @@
 #if defined(ARCH_CPU_ARM_FAMILY)
   // On ARM, BoringSSL requires access to /proc/cpuinfo to determine processor
   // features. Query this before entering the sandbox.
   CRYPTO_library_init();
 #endif
 
   // Pass BoringSSL a copy of the /dev/urandom file descriptor so RAND_bytes
   // will work inside the sandbox.
   RAND_set_urandom_fd(base::GetUrandomFD());
 
-#if defined(ENABLE_PLUGINS)
+#if BUILDFLAG(ENABLE_PLUGINS)
   // Ensure access to the Pepper plugins before the sandbox is turned on.
   PreloadPepperPlugins();
 #endif
 #if defined(ENABLE_WEBRTC)
   InitializeWebRtcModule();
 #endif
 
   SkFontConfigInterface::SetGlobal(
       new FontConfigIPC(GetSandboxFD()))->unref();
 
@@ skipping 292 matching lines @@
   const bool namespace_sandbox_engaged = sandbox_flags & kSandboxLinuxUserNS;
   CHECK_EQ(using_namespace_sandbox, namespace_sandbox_engaged);
 
   Zygote zygote(sandbox_flags, std::move(fork_delegates), extra_children,
                 extra_fds);
   // This function call can return multiple times, once per fork().
   return zygote.ProcessRequests();
 }
 
 }  // namespace content