Add build_config_functions.h to avoid #ifdef

content/common/sandbox_seccomp_bpf_linux.cc

Index: content/common/sandbox_seccomp_bpf_linux.cc
diff --git a/content/common/sandbox_seccomp_bpf_linux.cc b/content/common/sandbox_seccomp_bpf_linux.cc
index fea84bf444cd86443b5215359b328b41ffd8d3bf..8e8a761df097d3bc4a4caded5d8260d8fa42f4db 100644
--- a/content/common/sandbox_seccomp_bpf_linux.cc
+++ b/content/common/sandbox_seccomp_bpf_linux.cc
@@ -30,6 +30,7 @@
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "build/build_config.h"
+#include "build/build_config_functions.h"
 #include "content/common/sandbox_linux.h"
 #include "content/common/sandbox_seccomp_bpf_linux.h"
 #include "content/public/common/content_switches.h"
@@ -56,54 +57,6 @@ namespace {
 void StartSandboxWithPolicy(Sandbox::EvaluateSyscall syscall_policy,
                             BrokerProcess* broker_process);
 
-inline bool RunningOnASAN() {
-#if defined(ADDRESS_SANITIZER)
-  return true;
-#else
-  return false;
-#endif
-}
-
-inline bool IsChromeOS() {
-#if defined(OS_CHROMEOS)
-  return true;
-#else
-  return false;
-#endif
-}
-
-inline bool IsArchitectureX86_64() {
-#if defined(__x86_64__)
-  return true;
-#else
-  return false;
-#endif
-}
-
-inline bool IsArchitectureI386() {
-#if defined(__i386__)
-  return true;
-#else
-  return false;
-#endif
-}
-
-inline bool IsArchitectureArm() {
-#if defined(__arm__)
-  return true;
-#else
-  return false;
-#endif
-}
-
-inline bool IsUsingToolKitGtk() {
-#if defined(TOOLKIT_GTK)
-  return true;
-#else
-  return false;
-#endif
-}
-
 // Write |error_message| to stderr. Similar to RawLog(), but a bit more careful
 // about async-signal safety. |size| is the size to write and should typically
 // not include a terminating \0.
@@ -1593,7 +1546,7 @@ ErrorCode ArmGpuBrokerProcessPolicy(Sandbox* sandbox,
 // Don't restrict on ASAN.
 ErrorCode RestrictCloneToThreadsAndEPERMFork(Sandbox* sandbox) {
   // Glibc's pthread.
-  if (!RunningOnASAN()) {
+  if (!IsASANBuild()) {
     return sandbox->Cond(0, ErrorCode::TP_32BIT, ErrorCode::OP_EQUAL,
                          CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND |
                          CLONE_THREAD | CLONE_SYSVSEM | CLONE_SETTLS |