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

build/config/android/config.gni

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This file contains common system config stuff for the Android build.
 
 if (is_android) {
   import("//build_overrides/build.gni")
 
   has_chrome_android_internal =
@@ skipping 290 matching lines @@
   } else if (current_cpu == "mips64el") {
     android_app_abi = "mips64"
   } else {
     assert(false, "Unknown Android ABI: " + current_cpu)
   }
 
   if (android_libcpp_lib_dir == "") {
     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") {
     android_secondary_abi_cpu = "arm"
     android_app_secondary_abi = "armeabi-v7a"
   } else if (target_cpu == "x64") {
     android_secondary_abi_cpu = "x86"
     android_app_secondary_abi = "x86"
   } else if (target_cpu == "mips64el") {
     android_secondary_abi_cpu = "mipsel"
     android_app_secondary_abi = "mips"
   }
 
   if (defined(android_secondary_abi_cpu)) {
     if (is_clang) {
       android_secondary_abi_toolchain =
           "//build/toolchain/android:android_clang_${android_secondary_abi_cpu}"
     } else {
       android_secondary_abi_toolchain =
           "//build/toolchain/android:android_${android_secondary_abi_cpu}"
     }
   }
 }
 
 declare_args() {
   # Enables used resource whitelist generation. Set for official builds only
   # as a large amount of build output is generated.
   enable_resource_whitelist_generation = is_android && is_official_build
 }