Don't redefine macros from base/compiler_specific.h.

`DISABLE_CFI_ICALL` is already defined in that header; use it.

This is both simpler and less likely to trigger macro redefinition
errors.

Bug: none
Change-Id: I3ecfe9b6dc4ac42c6a69b3fd9c6d2c68fe8e62a2
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5805458
Reviewed-by: Mark Mentovai <mark@chromium.org>
diff --git a/util/BUILD.gn b/util/BUILD.gn
index d4f4b2d..8d037fe 100644
--- a/util/BUILD.gn
+++ b/util/BUILD.gn
@@ -730,7 +730,10 @@
 source_set("no_cfi_icall") {
   sources = [ "misc/no_cfi_icall.h" ]
   public_configs = [ "..:crashpad_config" ]
-  public_deps = [ "$mini_chromium_source_parent:build" ]
+  public_deps = [
+    "$mini_chromium_source_parent:base",
+    "$mini_chromium_source_parent:build",
+  ]
 }
 
 source_set("util_test") {
diff --git a/util/misc/no_cfi_icall.h b/util/misc/no_cfi_icall.h
index bb3e594..7410026 100644
--- a/util/misc/no_cfi_icall.h
+++ b/util/misc/no_cfi_icall.h
@@ -18,6 +18,7 @@
 #include <type_traits>
 #include <utility>
 
+#include "base/compiler_specific.h"
 #include "build/build_config.h"
 
 #if BUILDFLAG(IS_WIN)
@@ -28,24 +29,6 @@
 
 namespace {
 
-// Sanitizers annotations.
-#if defined(__has_attribute)
-#if __has_attribute(no_sanitize)
-#define NO_SANITIZE(what) __attribute__((no_sanitize(what)))
-#endif
-#endif
-#if !defined(NO_SANITIZE)
-#define NO_SANITIZE(what)
-#endif
-
-// DISABLE_CFI_ICALL -- Disable Control Flow Integrity indirect call checks.
-#if BUILDFLAG(IS_WIN)
-// Windows also needs __declspec(guard(nocf)).
-#define DISABLE_CFI_ICALL NO_SANITIZE("cfi-icall") __declspec(guard(nocf))
-#else
-#define DISABLE_CFI_ICALL NO_SANITIZE("cfi-icall")
-#endif
-
 template <typename Functor>
 struct FunctorTraits;