Add a JSON sanitizer.

components/safe_json/android/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")
 
-# GYP: //components/precache.gypi:precache_java
-android_library("precache_java") {
+# GYP: //components/safe_json.gypi:safe_json_jni_headers
+generate_jni("safe_json_jni_headers") {
+  sources = [
+    "java/src/org/chromium/components/safejson/JsonSanitizer.java",
+  ]
+  jni_package = "safe_json"
+}
+
+# GYP: //components/safe_json.gypi:safe_json_java
+android_library("safe_json_java") {
   deps = [
     "//base:base_java",
   ]
   DEPRECATED_java_in_dir = "java/src"
 }
-
-android_library("precache_javatests") {
-  deps = [
-    "//base:base_java_test_support",
-    ":precache_java",
-  ]
-  DEPRECATED_java_in_dir = "javatests/src"
-}