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

build/config/android/config.gni

Index: build/config/android/config.gni
diff --git a/build/config/android/config.gni b/build/config/android/config.gni
index d5948f2fbf373c0b89c3074d912d5b821ffaa450..3a93c1998fa3ae945994ea3c5c75cd74b610e0cb 100644
--- a/build/config/android/config.gni
+++ b/build/config/android/config.gni
@@ -308,16 +308,7 @@ if (is_android) {
     android_libcpp_lib_dir = "${android_libcpp_root}/libs/${android_app_abi}"
   }
 
-  # Secondary ABI -------------------------------------------------------------
-  if (target_cpu == "arm64" || target_cpu == "x64" || target_cpu == "mips64el") {

[agrieve, 2016/12/06 14:57:44]

nit: It would be better to leave android_64bit_target_cpu around until it's no
longer used downstream (e.g. add a TODO: remove once unused downstream, then
wait for a roll, then remove downstream usage, then delete todo)

I can take care of deleting downstream & the TODO if you're not set up for doing
this already.

[slan, 2016/12/06 15:19:38]

Done.

-    android_64bit_target_cpu = true
-  } else if (target_cpu == "arm" || target_cpu == "x86" ||
-             target_cpu == "mipsel") {
-    android_64bit_target_cpu = false
-  } else {
-    assert(false, "Unknown target CPU: $target_cpu")
-  }
-
+  # Secondary ABI -------------------------------------------------------------s
   # Intentionally do not define android_app_secondary_abi_cpu and
   # android_app_secondary_abi for 32-bit target_cpu, since they are not used.
   if (target_cpu == "arm64") {