Reland of Android: Use linker script to hide all non-JNI symbols

tools/android/memconsumer/BUILD.gn

 # Copyright 2015 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.
 
 import("//build/config/android/rules.gni")
 
 android_resources("memconsumer_apk_resources") {
   resource_dirs = [ "java/res" ]
   android_manifest = "java/AndroidManifest.xml"
 }
@@ skipping 12 matching lines @@
     "//base:base_java",
   ]
 }
 
 shared_library("libmemconsumer") {
   output_name = "memconsumer"
   sources = [
     "memconsumer_hook.cc",
   ]
   libs = [ "log" ]
-  configs -= [ "//build/config/android:hide_native_jni_exports" ]
+  configs -= [ "//build/config/android:hide_all_but_jni_onload" ]
 
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
 }