[Android] Trigger native event batching through Feature API

content/public/android/java/src/org/chromium/content/browser/ContentFeatureList.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentFeatureList.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentFeatureList.java b/content/public/android/java/src/org/chromium/content/browser/ContentFeatureList.java
new file mode 100644
index 0000000000000000000000000000000000000000..5312887f53393f486d8d1e0d7c91ee8494ced036
--- /dev/null
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentFeatureList.java
@@ -0,0 +1,36 @@
+// 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.browser;
+
+import org.chromium.base.annotations.JNINamespace;
+import org.chromium.base.annotations.MainDex;
+
+/**
+ * Java accessor for base/feature_list.h state.
+ */
+@JNINamespace("content::android")
+@MainDex
+public abstract class ContentFeatureList {
+    // Prevent instantiation.
+    private ContentFeatureList() {}
+
+    /**
+     * Returns whether the specified feature is enabled or not.
+     *
+     * Note: Features queried through this API must be added to the array
+     * |kFeaturesExposedToJava| in content/browser/android/content_feature_list.cc
+     *
+     * @param featureName The name of the feature to query.
+     * @return Whether the feature is enabled or not.
+     */
+    public static boolean isEnabled(String featureName) {
+        return nativeIsEnabled(featureName);
+    }
+
+    // Alphabetical:
+    public static final String REQUEST_UNBUFFERED_DISPATCH = "RequestUnbufferedDispatch";
+
+    private static native boolean nativeIsEnabled(String featureName);
+}