Making the AIDL GN target support multiple include directories.

content/public/android/BUILD.gn

 # 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
 
 android_aidl("common_aidl") {
   interface_file = "java/src/org/chromium/content/common/common.aidl"
-  import_include = "java/src"
+  import_include = [ "java/src" ]
   sources = [
     "java/src/org/chromium/content/common/IChildProcessCallback.aidl",
     "java/src/org/chromium/content/common/IChildProcessService.aidl",
   ]
 }
 
 android_aidl("is_ready_to_pay_service_aidl") {
   interface_file = "java/src/org/chromium/payments_common.aidl"
   sources = [
     "java/src/org/chromium/IsReadyToPayService.aidl",
@@ skipping 435 matching lines @@
     "junit/src/org/chromium/content/browser/input/ThreadedInputConnectionTest.java",
     "junit/src/org/chromium/content/browser/picker/DateDialogNormalizerTest.java",
     "junit/src/org/chromium/content/browser/BindingManagerImplTest.java",
   ]
   deps = [
     ":content_java",
     "//base:base_java",
     "//base:base_java_test_support",
   ]
 }