[Chromecast] Use symbol_level=1 for 32-bit GCC toolchains.

chrome/android/BUILD.gn

Index: chrome/android/BUILD.gn
diff --git a/chrome/android/BUILD.gn b/chrome/android/BUILD.gn
index fdb91d6dce9f0f63e33daea7a27820f25f2ea8d8..fb18c38cb96b8c81768011fa723521e87ef5f466 100644
--- a/chrome/android/BUILD.gn
+++ b/chrome/android/BUILD.gn
@@ -5,6 +5,7 @@
 import("//android_webview/webview_repack_locales_list.gni")
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
+import("//build/config/compiler/compiler.gni")
 import("//build/util/process_version.gni")
 import("//build_overrides/v8.gni")
 import("//chrome/android/chrome_public_apk_tmpl.gni")
@@ -566,7 +567,7 @@ if (current_toolchain == default_toolchain) {
     generate_resource_whitelist("monochrome_resource_whitelist") {
       # Always use the 32-bit library's whitelist since the 64-bit one is
       # webview-only.
-      if (!android_64bit_target_cpu) {
+      if (!is_target_cpu_64bit) {
         _fat_lib_toolchain = current_toolchain
       } else {
         _fat_lib_toolchain = android_secondary_abi_toolchain
@@ -620,7 +621,7 @@ if (current_toolchain == default_toolchain) {
 # with secondary 32-bit toolchain in 64-bit platform because we
 # need 64-bit //android_webview/monochrome and 32-bit this target
 # for 64-bit APK.
-if (!android_64bit_target_cpu ||
+if (!is_target_cpu_64bit ||
     current_toolchain == android_secondary_abi_toolchain) {
   shared_library("monochrome") {
     sources = [