Properly throw java exceptions from shouldOverrideUrlLoading

base/android/java_handler_thread.h

Index: base/android/java_handler_thread.h
diff --git a/base/android/java_handler_thread.h b/base/android/java_handler_thread.h
index 1709ff4fce8c72bc9619cb87130dd06ceea62949..d54bcc7276acda5d5f0069aa1c114108f27b238a 100644
--- a/base/android/java_handler_thread.h
+++ b/base/android/java_handler_thread.h
@@ -30,16 +30,25 @@ class BASE_EXPORT JavaHandlerThread {
 
   base::MessageLoop* message_loop() const { return message_loop_.get(); }
   void Start();
+  void StartForTesting(base::WaitableEvent* test_done_event);
   void Stop();
+  void StopForTesting();
 
   // Called from java on the newly created thread.
   // Start() will not return before this methods has finished.
   void InitializeThread(JNIEnv* env,
                         const JavaParamRef<jobject>& obj,
                         jlong event);
+  void InitializeThreadForTesting(JNIEnv* env,
+                                  const JavaParamRef<jobject>& obj,
+                                  jlong event,
+                                  jlong test_done_event);
   void StopThread(JNIEnv* env,
                   const JavaParamRef<jobject>& obj,
                   jlong event);
+  void StopThreadForTesting(JNIEnv* env,
+                            const JavaParamRef<jobject>& obj,
+                            jlong event);
 
   static bool RegisterBindings(JNIEnv* env);