Add gvr-android-keyboard to third_party/

This CL adds the header and .aidl file that Chrome needs to dynamically load the
Keyboard API implementation from the Daydream Keyboard apk.

Bug: 641470
Change-Id: Id47074cc0fdff786d0ab23dd0e43faabc0c2b023
Reviewed-on: https://chromium-review.googlesource.com/771537
Commit-Queue: Yash Malik <ymalik@chromium.org>
Reviewed-by: David Dorwin <ddorwin@chromium.org>
Reviewed-by: Biao She <bshe@chromium.org>
Reviewed-by: Max Moroz <mmoroz@chromium.org>
Reviewed-by: Brett Wilson <brettw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#517235}

third_party/gvr-android-keyboard/BUILD.gn

+# Copyright 2017 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_library("kb_java") {
+  deps = [
+    "//base:base_java",
+  ]
+  srcjar_deps = [ ":aidl" ]
+}
+
+android_aidl("aidl") {
+  sources = [
+    "com/google/vr/keyboard/IGvrKeyboardLoader.aidl",
+  ]
+}
+
+config("kb_config") {
+  include_dirs = [ "src/libraries/headers/" ]
+}

third_party/gvr-android-keyboard/OWNERS

+ymalik@chromium.org
+asimjour@chromium.org
+
+# COMPONENT: UI>Browser>VR

third_party/gvr-android-keyboard/README.chromium

+Name: GVR Keyboard
+Short Name: gvr-android-keyboard
+URL: NA
+Version: 0
+Date: 2017-11-14
+License: Apache 2.0
+License File: LICENSE
+Security Critical: yes
+
+Description:
+Chrome VR dynamically loads the keyboard API packaged as part of the GVR
+keyboard APK. This directory includes the header for the API and the resources
+needed to dynamically load the implementation. Note that the GVR keyboard isn't
+uploaded to a public repository yet.
+
+Local Modifications:
+We added a dependency to gvr_types.h in third_party/gvr-android-sdk, which is
+needed by gvr_header.h.

third_party/gvr-android-keyboard/com/google/vr/keyboard/IGvrKeyboardLoader.aidl

+/* Copyright 2017 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.vr.keyboard;
+
+/**
+ * @hide
+ * Provides loading of the GVR keyboard library.
+ */
+interface IGvrKeyboardLoader {
+  /**
+   * Attempts to load (dlopen) GVR keyboard library.
+   * <p>
+   * The library will be loaded only if a matching library can be found
+   * that is recent enough. If the library is out-of-date, or cannot be found,
+   * 0 will be returned.
+   *
+   * @param the version of the target library.
+   * @return the native handle to the library. 0 if the load fails.
+   */
+  long loadGvrKeyboard(long version) = 1;
+
+  /**
+   * Closes a library (dlclose).
+   *
+   * @param nativeLibrary the native handle of the library to be closed.
+   */
+  void closeGvrKeyboard(long nativeLibrary) = 2;
+}

third_party/gvr-android-keyboard/com/google/vr/keyboard/OWNERS

+per-file *.aidl=set noparent
+per-file *.aidl=file://ipc/SECURITY_OWNERS