Properly throw java exceptions from shouldOverrideUrlLoading

base/android/java_handler_thread_for_testing.h

+// 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.
+
+#ifndef BASE_ANDROID_JAVA_HANDLER_THREAD_FOR_TESTING_H_
+#define BASE_ANDROID_JAVA_HANDLER_THREAD_FOR_TESTING_H_
+
+#include "base/android/java_handler_thread.h"
+
+namespace base {
+
+// class WaitableEvent;
+
+namespace android {
+
+class JavaHandlerThreadForTesting : public JavaHandlerThread {
+ public:
+  JavaHandlerThreadForTesting(const char* name,
+                              base::WaitableEvent* test_done_event);
+  virtual ~JavaHandlerThreadForTesting();
+
+  void StartMessageLoop() override;
+  void StopMessageLoop() override;
+
+ private:
+  base::WaitableEvent* test_done_event_;
+};
+
+}  // namespace android
+}  // namespace base
+
+#endif  // BASE_ANDROID_JAVA_HANDLER_THREAD_FOR_TESTING_H_