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

chrome/android/chrome_public_apk_tmpl.gni

Index: chrome/android/chrome_public_apk_tmpl.gni
diff --git a/chrome/android/chrome_public_apk_tmpl.gni b/chrome/android/chrome_public_apk_tmpl.gni
index 5c98830dc8f0a79d248db8bab150f8ccafa4c173..accb1b91fc44488ac7120ac7333fb6418497393e 100644
--- a/chrome/android/chrome_public_apk_tmpl.gni
+++ b/chrome/android/chrome_public_apk_tmpl.gni
@@ -4,6 +4,7 @@
 
 import("//base/android/linker/config.gni")
 import("//build/config/android/rules.gni")
+import("//build/config/compiler/compiler.gni")
 import("//chrome/common/features.gni")
 import("//third_party/leakcanary/config.gni")
 import("channel.gni")
@@ -81,12 +82,12 @@ template("monochrome_public_apk_tmpl") {
   chrome_public_apk_tmpl(target_name) {
     # Always build 64-bit //android_webview:monochrome because Chrome runs
     # in 32-bit mode.
-    if (android_64bit_target_cpu) {
+    if (is_target_cpu_64bit) {
       shared_libraries = [ "//android_webview:monochrome" ]
     } else {
       shared_libraries = [ "//chrome/android:monochrome" ]
     }
-    if (android_64bit_target_cpu && build_apk_secondary_abi) {
+    if (is_target_cpu_64bit && build_apk_secondary_abi) {
       secondary_abi_shared_libraries =
           [ "//chrome/android:monochrome_secondary_abi_lib" ]
     }