[Android] Fix crash when closing tab during infobar cancellation

chrome/browser/ui/android/infobars/simple_confirm_infobar_builder.cc

 // 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.
 
 #include "chrome/browser/ui/android/infobars/simple_confirm_infobar_builder.h"
 
 #include <memory>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 96 matching lines @@
   return (primary_str_.empty() ? 0 : BUTTON_OK) |
       (secondary_str_.empty() ? 0 : BUTTON_CANCEL);
 }
 
 base::string16
 SimpleConfirmInfoBarDelegate::GetButtonLabel(InfoBarButton button) const {
   return button == BUTTON_OK ? primary_str_ : secondary_str_;
 }
 
 bool SimpleConfirmInfoBarDelegate::Accept() {
-  Java_SimpleConfirmInfoBarBuilder_onInfoBarButtonClicked(
+  return !Java_SimpleConfirmInfoBarBuilder_onInfoBarButtonClicked(
       base::android::AttachCurrentThread(), java_listener_.obj(), true);
-  return true;
 }
 
 bool SimpleConfirmInfoBarDelegate::Cancel() {
-  Java_SimpleConfirmInfoBarBuilder_onInfoBarButtonClicked(
+  return !Java_SimpleConfirmInfoBarBuilder_onInfoBarButtonClicked(
       base::android::AttachCurrentThread(), java_listener_.obj(), false);
-  return true;
 }
 
 }  // anonymous namespace
 
 // Native JNI methods ---------------------------------------------------------
 
 void Create(JNIEnv* env,
             const JavaParamRef<jclass>& j_caller,
             const JavaParamRef<jobject>& j_tab,
             jint j_identifier,
@@ skipping 26 matching lines @@
       TabAndroid::GetNativeTab(env, j_tab)->web_contents());
   service->AddInfoBar(service->CreateConfirmInfoBar(
       base::WrapUnique(new SimpleConfirmInfoBarDelegate(
           j_listener, infobar_identifier, icon_bitmap, message_str, primary_str,
           secondary_str, auto_expire))));
 }
 
 bool RegisterSimpleConfirmInfoBarBuilder(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }