Remove -fstack-protector-strong from the ChromeOS GN build.

build/toolchain/android/find_android_compiler.py

 # Copyright 2013 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 script locates the Android compilers given the bin directory of the
 # android toolchain.
 
 import glob
 import subprocess
 import sys
 
 if len(sys.argv) != 2:
   print "Error: expecting one argument of the android toolchain dir."
   sys.exit(1)
 
 # TODO(brettw) this logic seems like a bad idea. It was copied from
 # common.gypi. It seems like the toolchain should just know the name given the
 # current platform rather than having to rely on glob.
 android_toolchain = sys.argv[1]
 cc = glob.glob(android_toolchain + "/*-gcc")
 cxx = glob.glob(android_toolchain + "/*-g++")
+
+# We tolerate "no matches." In the Android AOSP WebView build, it runs this
+# logic and the directory doesn't exist, giving no matches. But that build runs
+# GYP to generate Android Makefiles which specify the compiler separately. So
+# all we need to do in this case is ignore the error and continue with empty
+# target compilers.
+if len(cc) == 0:
+  cc = [""]
+if len(cxx) == 0:
+  cxx = [""]
 if len(cc) != 1 or len(cxx) != 1:
-  print "Either none or more than one matching compiler."
+  print "More than one matching compiler."
   sys.exit(1)
 
 # Get the host compilers from the current path.
 which_gcc = subprocess.check_output(["which gcc"], shell=True).strip()
 which_gxx = subprocess.check_output(["which g++"], shell=True).strip()
 
 print ('["' + cc[0] + '","' + cxx[0] + '","' + which_gcc + '","' +
        which_gxx + '"]')