diff --git a/BUILD.gn b/BUILD.gn
index 98d7390d..7c0a7940 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -16,11 +16,6 @@ import("build/crashpad_buildconfig.gni")
 import("build/test.gni")
 import("util/net/tls.gni")
 
-if (crashpad_is_in_chromium) {
-  # Prevent Chromium source assignment filters from being inherited.
-  set_sources_assignment_filter([])
-}
-
 config("crashpad_config") {
   include_dirs = [ "." ]
 }
diff --git a/client/BUILD.gn b/client/BUILD.gn
index ca55ad42..4a5f34ad 100644
--- a/client/BUILD.gn
+++ b/client/BUILD.gn
@@ -14,11 +14,6 @@
 
 import("../build/crashpad_buildconfig.gni")
 
-if (crashpad_is_in_chromium) {
-  # Prevent Chromium source assignment filters from being inherited.
-  set_sources_assignment_filter([])
-}
-
 crashpad_static_library("client") {
   sources = [
     "annotation.cc",
diff --git a/compat/BUILD.gn b/compat/BUILD.gn
index 9bb2306f..54d9acb2 100644
--- a/compat/BUILD.gn
+++ b/compat/BUILD.gn
@@ -14,11 +14,6 @@
 
 import("../build/crashpad_buildconfig.gni")
 
-if (crashpad_is_in_chromium) {
-  # Prevent Chromium source assignment filters from being inherited.
-  set_sources_assignment_filter([])
-}
-
 config("compat_config") {
   include_dirs = []
 
diff --git a/handler/BUILD.gn b/handler/BUILD.gn
index 0eab2ff9..04adb7ff 100644
--- a/handler/BUILD.gn
+++ b/handler/BUILD.gn
@@ -14,11 +14,6 @@
 
 import("../build/crashpad_buildconfig.gni")
 
-if (crashpad_is_in_chromium) {
-  # Prevent Chromium source assignment filters from being inherited.
-  set_sources_assignment_filter([])
-}
-
 static_library("handler") {
   sources = [
     "crash_report_upload_thread.cc",
diff --git a/minidump/BUILD.gn b/minidump/BUILD.gn
index d07c1dd4..6217edeb 100644
--- a/minidump/BUILD.gn
+++ b/minidump/BUILD.gn
@@ -14,11 +14,6 @@
 
 import("../build/crashpad_buildconfig.gni")
 
-if (crashpad_is_in_chromium) {
-  # Prevent Chromium source assignment filters from being inherited.
-  set_sources_assignment_filter([])
-}
-
 crashpad_static_library("minidump") {
   sources = [
     "minidump_annotation_writer.cc",
diff --git a/snapshot/BUILD.gn b/snapshot/BUILD.gn
index 49a809a6..6ca9bd40 100644
--- a/snapshot/BUILD.gn
+++ b/snapshot/BUILD.gn
@@ -17,9 +17,6 @@ import("../build/crashpad_fuzzer_test.gni")
 
 if (crashpad_is_in_chromium) {
   import("//build/config/compiler/compiler.gni")
-
-  # Prevent Chromium source assignment filters from being inherited.
-  set_sources_assignment_filter([])
 }
 
 crashpad_static_library("snapshot") {
diff --git a/test/BUILD.gn b/test/BUILD.gn
index e225e47e..93485740 100644
--- a/test/BUILD.gn
+++ b/test/BUILD.gn
@@ -14,11 +14,6 @@
 
 import("../build/crashpad_buildconfig.gni")
 
-if (crashpad_is_in_chromium) {
-  # Prevent Chromium source assignment filters from being inherited.
-  set_sources_assignment_filter([])
-}
-
 static_library("test") {
   testonly = true
 
diff --git a/test/ios/BUILD.gn b/test/ios/BUILD.gn
index cbf8ef89..59dd35d5 100644
--- a/test/ios/BUILD.gn
+++ b/test/ios/BUILD.gn
@@ -16,9 +16,6 @@ import("../../build/crashpad_buildconfig.gni")
 
 if (crashpad_is_in_chromium) {
   import("//build/config/ios/rules.gni")
-
-  # Prevent Chromium source assignment filters from being inherited.
-  set_sources_assignment_filter([])
 } else if (crashpad_is_standalone) {
   import("//third_party/mini_chromium/mini_chromium/build/ios/rules.gni")
 }
diff --git a/test/ios/host/BUILD.gn b/test/ios/host/BUILD.gn
index 0a14f179..20f25003 100644
--- a/test/ios/host/BUILD.gn
+++ b/test/ios/host/BUILD.gn
@@ -16,9 +16,6 @@ import("../../../build/crashpad_buildconfig.gni")
 
 if (crashpad_is_in_chromium) {
   import("//build/config/ios/rules.gni")
-
-  # Prevent Chromium source assignment filters from being inherited.
-  set_sources_assignment_filter([])
 } else if (crashpad_is_standalone) {
   import("//third_party/mini_chromium/mini_chromium/build/ios/rules.gni")
 }
diff --git a/tools/BUILD.gn b/tools/BUILD.gn
index 592e0ad5..7da109bc 100644
--- a/tools/BUILD.gn
+++ b/tools/BUILD.gn
@@ -14,11 +14,6 @@
 
 import("../build/crashpad_buildconfig.gni")
 
-if (crashpad_is_in_chromium) {
-  # Prevent Chromium source assignment filters from being inherited.
-  set_sources_assignment_filter([])
-}
-
 source_set("tool_support") {
   sources = [
     "tool_support.cc",
diff --git a/util/BUILD.gn b/util/BUILD.gn
index 3a26c6e8..ab0d3294 100644
--- a/util/BUILD.gn
+++ b/util/BUILD.gn
@@ -17,9 +17,6 @@ import("net/tls.gni")
 
 if (crashpad_is_in_chromium) {
   import("//build/config/sanitizers/sanitizers.gni")
-
-  # Prevent Chromium source assignment filters from being inherited.
-  set_sources_assignment_filter([])
 }
 
 if (crashpad_is_mac || crashpad_is_ios) {