diff --git a/third_party/libwebrtc/build/config/android/copy_ex.gni b/third_party/libwebrtc/build/config/android/copy_ex.gni
index 0ea9e7066832..d3705dd7ef4a 100644
--- a/third_party/libwebrtc/build/config/android/copy_ex.gni
+++ b/third_party/libwebrtc/build/config/android/copy_ex.gni
@@ -22,7 +22,6 @@
 import("//build/config/python.gni")
 
 template("copy_ex") {
-  set_sources_assignment_filter([])
   action_with_pydeps(target_name) {
     forward_variables_from(invoker,
                            [
diff --git a/third_party/libwebrtc/build/config/android/internal_rules.gni b/third_party/libwebrtc/build/config/android/internal_rules.gni
index 1003633a13a2..15898d822fdd 100644
--- a/third_party/libwebrtc/build/config/android/internal_rules.gni
+++ b/third_party/libwebrtc/build/config/android/internal_rules.gni
@@ -1124,7 +1124,6 @@ if (enable_java_templates) {
   }
 
   template("proguard") {
-    set_sources_assignment_filter([])
     forward_variables_from(invoker,
                            [
                              "data",
@@ -2205,7 +2204,6 @@ if (enable_java_templates) {
   #
   template("prepare_resources") {
     action_with_pydeps(target_name) {
-      set_sources_assignment_filter([])
       forward_variables_from(invoker,
                              [
                                "deps",
@@ -2397,7 +2395,6 @@ if (enable_java_templates) {
   #   proguard_file_main_dex: (optional)
   #
   template("compile_resources") {
-    set_sources_assignment_filter([])
     forward_variables_from(invoker,
                            [
                              "testonly",
@@ -3448,7 +3445,6 @@ if (enable_java_templates) {
     # TODO(crbug.com/1042017): Remove.
     not_needed(invoker, [ "no_build_hooks" ])
 
-    set_sources_assignment_filter([])
     forward_variables_from(invoker, [ "testonly" ])
     _is_prebuilt = defined(invoker.jar_path)
     _is_annotation_processor = invoker.type == "java_annotation_processor"
diff --git a/third_party/libwebrtc/build/config/android/rules.gni b/third_party/libwebrtc/build/config/android/rules.gni
index 9c04ea3b9f14..8ab84458e0c9 100644
--- a/third_party/libwebrtc/build/config/android/rules.gni
+++ b/third_party/libwebrtc/build/config/android/rules.gni
@@ -126,7 +126,6 @@ if (enable_java_templates) {
 
   # JNI target implementation. See generate_jni or generate_jar_jni for usage.
   template("generate_jni_impl") {
-    set_sources_assignment_filter([])
 
     _jni_output_dir = "${target_gen_dir}/${target_name}"
     if (defined(invoker.jni_generator_include)) {
@@ -423,7 +422,6 @@ if (enable_java_templates) {
   #     include_path = "android/java/templates"
   #   }
   template("java_cpp_template") {
-    set_sources_assignment_filter([])
     forward_variables_from(invoker, [ "testonly" ])
 
     _include_path = "//"
@@ -508,7 +506,6 @@ if (enable_java_templates) {
   #     ]
   #   }
   template("java_cpp_enum") {
-    set_sources_assignment_filter([])
     action_with_pydeps(target_name) {
       forward_variables_from(invoker,
                              [
@@ -578,7 +575,6 @@ if (enable_java_templates) {
   #   A FooSwitches.java file, defining a class named FooSwitches in the package
   #   my.java.package.
   template("java_cpp_strings") {
-    set_sources_assignment_filter([])
     action_with_pydeps(target_name) {
       forward_variables_from(invoker,
                              [
@@ -3968,7 +3964,6 @@ if (enable_java_templates) {
   #   }
   template("android_aidl") {
     action_with_pydeps(target_name) {
-      set_sources_assignment_filter([])
       forward_variables_from(invoker, [ "testonly" ])
 
       script = "//build/android/gyp/aidl.py"
@@ -4045,7 +4040,6 @@ if (enable_java_templates) {
   #    sources = [ "$proto_path/foo.proto" ]
   #  }
   template("proto_java_library") {
-    set_sources_assignment_filter([])
     forward_variables_from(invoker, [ "testonly" ])
 
     _template_name = target_name
diff --git a/third_party/libwebrtc/tools/grit/repack.gni b/third_party/libwebrtc/tools/grit/repack.gni
index 1c053f7c5243..193f2dc43f5f 100644
--- a/third_party/libwebrtc/tools/grit/repack.gni
+++ b/third_party/libwebrtc/tools/grit/repack.gni
@@ -165,7 +165,6 @@ template("repack_locales") {
         bundle_output =
             "{{bundle_resources_dir}}/${_output_locale}.lproj/locale.pak"
       }
-      set_sources_assignment_filter([])
       sources = []
       foreach(_pattern, invoker.source_patterns) {
         sources += [ "${_pattern}${_input_locale}.pak" ]