WebView autofill implementation

components/autofill/android/BUILD.gn

 # Copyright 2016 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("autofill_java_resources") {
   custom_package = "org.chromium.components.autofill"
   resource_dirs = [ "java/res" ]
 }
 
 android_library("autofill_java") {
   deps = [
     ":autofill_java_resources",
     "//base:base_java",
     "//third_party/android_tools:android_support_v7_appcompat_java",
     "//ui/android:ui_java",
   ]
   java_files = [
     "java/src/org/chromium/components/autofill/AutofillDelegate.java",
     "java/src/org/chromium/components/autofill/AutofillKeyboardAccessory.java",
     "java/src/org/chromium/components/autofill/AutofillPopup.java",
+    "java/src/org/chromium/components/autofill/AutofillProvider.java",
     "java/src/org/chromium/components/autofill/AutofillSuggestion.java",
+    "java/src/org/chromium/components/autofill/FormData.java",
+    "java/src/org/chromium/components/autofill/FormFieldData.java",
   ]
 }
+
+generate_jni("jni_headers") {
+  sources = [
+    "java/src/org/chromium/components/autofill/AutofillProvider.java",
+    "java/src/org/chromium/components/autofill/FormData.java",
+    "java/src/org/chromium/components/autofill/FormFieldData.java",
+  ]
+  jni_package = "autofill"
+}
+
+static_library("provider") {
+  sources = [
+    "autofill_provider_android.cc",
+    "autofill_provider_android.h",
+    "form_data_android.cc",
+    "form_data_android.h",
+    "form_field_data_android.cc",
+    "form_field_data_android.h",
+  ]
+  deps = [
+    ":jni_headers",
+    "//components/autofill/core/browser:browser",
+  ]
+}