[Android] Run lint using a cache in the output directory.

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) {
   assert(rebase_path("//", root_build_dir) == "../../",
          "Android output directory must be nested 2 levels within src/ (" +
              "e.g.: out-gn/Debug). http://crbug.com/412935")
@@ skipping 132 matching lines @@
 
   android_sdk = "${android_sdk_root}/platforms/android-${android_sdk_version}"
 
   # Path to the Android NDK and SDK.
   android_ndk_root = "//third_party/android_tools/ndk"
   android_ndk_include_dir = "$android_ndk_root/usr/include"
 
   android_sdk_tools = "${android_sdk_root}/tools"
   android_sdk_build_tools =
       "${android_sdk_root}/build-tools/$android_sdk_build_tools_version"
+  android_sdk_build_tools_version = android_sdk_build_tools_version

[agrieve, 2016/03/19 00:12:54]

no-op?

[jbudorick, 2016/03/19 00:57:42]

hm, yeah. Probably a relic from an wip version?

 
   # Path to the SDK's android.jar
   android_sdk_jar = "$android_sdk/android.jar"
 
   zipalign_path = "$android_sdk_build_tools/zipalign"
 
   # Subdirectories inside android_ndk_root that contain the sysroot for the
   # associated platform.
   _android_api_level = 16
   x86_android_sysroot_subdir =
@@ skipping 83 matching lines @@
   } else if (current_cpu == "x64") {
     android_app_abi = "x86_64"
   } else if (current_cpu == "arm64") {
     android_app_abi = "arm64-v8a"
   } else if (current_cpu == "mips64el") {
     android_app_abi = "mips64"
   } else {
     assert(false, "Unknown Android ABI: " + current_cpu)
   }
 }