GN: Introduce templates.

webrtc/modules/remote_bitrate_estimator/BUILD.gn

Index: webrtc/modules/remote_bitrate_estimator/BUILD.gn
diff --git a/webrtc/modules/remote_bitrate_estimator/BUILD.gn b/webrtc/modules/remote_bitrate_estimator/BUILD.gn
index bbf74aba7ccbcb06d55eb56275443291df7c9add..75e6298c74af3e08d0232c16218601dd0b4c7cfe 100644
--- a/webrtc/modules/remote_bitrate_estimator/BUILD.gn
+++ b/webrtc/modules/remote_bitrate_estimator/BUILD.gn
@@ -7,14 +7,13 @@
 # be found in the AUTHORS file in the root of the source tree.
 
 import("../../build/webrtc.gni")
-import("//testing/test.gni")
 
 declare_args() {
   # Set this to true to enable BWE test logging.
   rtc_enable_bwe_test_logging = false
 }
 
-source_set("remote_bitrate_estimator") {
+rtc_source_set("remote_bitrate_estimator") {
   sources = [
     "aimd_rate_control.cc",
     "aimd_rate_control.h",
@@ -52,7 +51,7 @@ source_set("remote_bitrate_estimator") {
 
   if (is_clang) {
     # Suppress warnings from the Chromium Clang plugins (bugs.webrtc.org/163).
-    configs -= [ "//build/config/clang:find_bad_constructs" ]
+    configs_suppressions += [ "//build/config/clang:find_bad_constructs" ]
   }
 
   deps = [
@@ -63,7 +62,7 @@ source_set("remote_bitrate_estimator") {
 }
 
 if (rtc_include_tests) {
-  source_set("bwe_simulator") {
+  rtc_source_set("bwe_simulator") {
     testonly = true
     sources = [
       "test/bwe.cc",
@@ -106,7 +105,7 @@ if (rtc_include_tests) {
 
     if (is_clang) {
       # Suppress warnings from the Chromium Clang plugins (bugs.webrtc.org/163).
-      configs -= [ "//build/config/clang:find_bad_constructs" ]
+      configs_suppressions += [ "//build/config/clang:find_bad_constructs" ]
     }
 
     if (is_win) {