[Cronet] Add error code and immediatelyRetryable() to UrlRequestException

components/cronet/android/chromium_url_request.h

 // Copyright 2014 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 COMPONENTS_CRONET_ANDROID_CHROMIUM_URL_REQUEST_H_
 #define COMPONENTS_CRONET_ANDROID_CHROMIUM_URL_REQUEST_H_
 
 #include <jni.h>
 
 namespace cronet {
 
 // Define request priority values like REQUEST_PRIORITY_IDLE in a
 // way that ensures they're always the same than their Java counterpart.
 //
 // A Java counterpart will be generated for this enum.
 // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.net
 // GENERATED_JAVA_CLASS_NAME_OVERRIDE: ChromiumUrlRequestPriority
 // GENERATED_JAVA_PREFIX_TO_STRIP: REQUEST_PRIORITY_
 enum UrlRequestPriority {
   REQUEST_PRIORITY_IDLE = 0,
   REQUEST_PRIORITY_LOWEST = 1,
   REQUEST_PRIORITY_LOW = 2,
   REQUEST_PRIORITY_MEDIUM = 3,
   REQUEST_PRIORITY_HIGHEST = 4,
 };
 
-// Define request priority values like REQUEST_ERROR_SUCCESS in a
+// Define request error values like REQUEST_ERROR_SUCCESS in a
 // way that ensures they're always the same than their Java counterpart.
 //
 // A Java counterpart will be generated for this enum.
 // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.net
 // GENERATED_JAVA_CLASS_NAME_OVERRIDE: ChromiumUrlRequestError
 // GENERATED_JAVA_PREFIX_TO_STRIP: REQUEST_ERROR_
 enum UrlRequestError {
   REQUEST_ERROR_SUCCESS = 0,
   REQUEST_ERROR_UNKNOWN = 1,
   REQUEST_ERROR_MALFORMED_URL = 2,
   REQUEST_ERROR_CONNECTION_TIMED_OUT = 3,
   REQUEST_ERROR_UNKNOWN_HOST = 4,
   REQUEST_ERROR_TOO_MANY_REDIRECTS = 5,
 };
 
 bool ChromiumUrlRequestRegisterJni(JNIEnv* env);
 
 }  // namespace cronet
 
 #endif  // COMPONENTS_CRONET_ANDROID_CHROMIUM_URL_REQUEST_H_