diff -up chromium-73.0.3683.75/build/toolchain/linux/BUILD.gn.disable-ndnpc chromium-73.0.3683.75/build/toolchain/linux/BUILD.gn
--- chromium-73.0.3683.75/build/toolchain/linux/BUILD.gn.disable-ndnpc	2019-03-13 10:29:00.331009643 -0400
+++ chromium-73.0.3683.75/build/toolchain/linux/BUILD.gn	2019-03-13 10:29:28.344458746 -0400
@@ -31,7 +31,7 @@ gcc_toolchain("arm64") {
   ld = cxx
   readelf = "${toolprefix}readelf"
   nm = "${toolprefix}nm"
-  extra_cppflags = "-fno-delete-null-pointer-checks"
+  extra_cppflags = ""
 
   toolchain_args = {
     current_cpu = "arm64"
@@ -50,7 +50,7 @@ gcc_toolchain("arm") {
   ld = cxx
   readelf = "${toolprefix}readelf"
   nm = "${toolprefix}nm"
-  extra_cppflags = "-fno-delete-null-pointer-checks"
+  extra_cppflags = ""
 
   toolchain_args = {
     current_cpu = "arm"
@@ -101,7 +101,7 @@ gcc_toolchain("x86") {
   nm = "nm"
   ar = "ar"
   ld = cxx
-  extra_cppflags = "-fno-delete-null-pointer-checks -g1"
+  extra_cppflags = "-g1"
 
   # Output linker map files for binary size analysis.
   enable_linker_map = true
@@ -155,7 +155,7 @@ gcc_toolchain("x64") {
   nm = "nm"
   ar = "ar"
   ld = cxx
-  extra_cppflags = "-fno-delete-null-pointer-checks"
+  extra_cppflags = ""
 
   # Output linker map files for binary size analysis.
   enable_linker_map = true
@@ -190,7 +190,7 @@ gcc_toolchain("mipsel") {
   ld = cxx
   readelf = "${toolprefix}readelf"
   nm = "${toolprefix}nm"
-  extra_cppflags = "-fno-delete-null-pointer-checks"
+  extra_cppflags = ""
 
   toolchain_args = {
     cc_wrapper = ""