Handle Java assert using a customized function in base

build/android/buildhooks/java/org/chromium/buildhooks/BuildHooks.java

Index: build/android/buildhooks/java/org/chromium/buildhooks/BuildHooks.java
diff --git a/build/android/buildhooks/java/org/chromium/buildhooks/BuildHooks.java b/build/android/buildhooks/java/org/chromium/buildhooks/BuildHooks.java
new file mode 100644
index 0000000000000000000000000000000000000000..6ae3f76afa88cada85161fd4c3af647bf828089b
--- /dev/null
+++ b/build/android/buildhooks/java/org/chromium/buildhooks/BuildHooks.java
@@ -0,0 +1,26 @@
+// 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.buildhooks;
+
+/**
+ * Callback interface.
+ */
+public class BuildHooks {
+    static Callback<AssertionError> sAssertCallback;
+    /**
+     * Handle AssertionError, decide whether throw or report without crashing base on gn arg.
+     */
+    public static void assertFailureHandler(AssertionError assertionError) throws AssertionError {
+        if (sAssertCallback != null) {
+            sAssertCallback.run(assertionError);
+        } else {
+            throw assertionError;
+        }
+    }
+
+    public static void setAssertCallback(Callback<AssertionError> callback) {
+        sAssertCallback = callback;
+    }
+}