android webview: Upstream android 7 glue layer

android_webview/glue/java/src/com/android/webview/chromium/MonochromeLibraryPreloader.java

+// 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.
+
+package com.android.webview.chromium;
+
+import android.content.Context;
+import android.webkit.WebViewFactory;
+
+import org.chromium.base.library_loader.NativeLibraryPreloader;
+
+/**
+ * The library preloader for Monochrome for sharing native library's relro
+ * between Chrome and WebView.
+ */
+public class MonochromeLibraryPreloader extends NativeLibraryPreloader {
+
+    @Override
+    public int loadLibrary(Context context) {
+        return WebViewFactory.loadWebViewNativeLibraryFromPackage(context.getPackageName(),
+                getClass().getClassLoader());
+    }
+}