WebView: change default shouldOverrideUrlLoading

content/public/android/java/src/org/chromium/content_public/common/ContentUrlConstants.java

Index: content/public/android/java/src/org/chromium/content_public/common/ContentUrlConstants.java
diff --git a/content/public/android/java/src/org/chromium/content_public/common/ContentUrlConstants.java b/content/public/android/java/src/org/chromium/content_public/common/ContentUrlConstants.java
new file mode 100644
index 0000000000000000000000000000000000000000..7d22123759822a3ef124d40d4a28e1b044d1c51a
--- /dev/null
+++ b/content/public/android/java/src/org/chromium/content_public/common/ContentUrlConstants.java
@@ -0,0 +1,19 @@
+// 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.
+
+package org.chromium.content_public.common;
+
+/**
+ * URL constants used by both Chrome and WebView.
+ */
+public final class ContentUrlConstants {
+    public static final String ABOUT_SCHEME = "about";
+
+    public static final String ABOUT_URL_SHORT_PREFIX = "about:";
+
+    public static final String ABOUT_BLANK_DISPLAY_URL = "about:blank";
+    public static final String ABOUT_BLANK_URL = "about://blank";
+
+    private ContentUrlConstants() {}
+}