change return type of StartNetLogToFile

components/cronet/android/cronet_url_request_context_adapter.h

Index: components/cronet/android/cronet_url_request_context_adapter.h
diff --git a/components/cronet/android/cronet_url_request_context_adapter.h b/components/cronet/android/cronet_url_request_context_adapter.h
index 901f26c67c208c70861fb09b9ed5af8716c7c49f..70e9283a47a2192a65e4c7695b5680d27987e403 100644
--- a/components/cronet/android/cronet_url_request_context_adapter.h
+++ b/components/cronet/android/cronet_url_request_context_adapter.h
@@ -80,7 +80,7 @@ class CronetURLRequestContextAdapter
   net::URLRequestContext* GetURLRequestContext();
 
   // Starts NetLog logging to file. This can be called on any thread.

[xunjieli, 2016/09/26 16:35:39]

Could you document the return value in the comment as well?
Something like:

// Starts NetLog logging to file. Returns false upon failure.
// This can be called on any thread.

-  void StartNetLogToFile(JNIEnv* env,
+  bool StartNetLogToFile(JNIEnv* env,
                          const base::android::JavaParamRef<jobject>& jcaller,
                          const base::android::JavaParamRef<jstring>& jfile_name,
                          jboolean jlog_all);