Add SetUploadFilePath method to URLFetcher.

net/url_request/url_fetcher.h

Index: net/url_request/url_fetcher.h
diff --git a/net/url_request/url_fetcher.h b/net/url_request/url_fetcher.h
index 4aa07f399348c9dd0e5e390641a02e394498faf7..aebfcd4eaf2d16027829bdb56b0b8e4b9475e731 100644
--- a/net/url_request/url_fetcher.h
+++ b/net/url_request/url_fetcher.h
@@ -124,12 +124,24 @@ class NET_EXPORT URLFetcher {
   static void SetIgnoreCertificateRequests(bool ignored);
 
   // Sets data only needed by POSTs.  All callers making POST requests should
-  // call this before the request is started.  |upload_content_type| is the MIME
-  // type of the content, while |upload_content| is the data to be sent (the
-  // Content-Length header value will be set to the length of this data).
+  // call one of the SetUpload* methods before the request is started.
+  // |upload_content_type| is the MIME type of the content, while
+  // |upload_content| is the data to be sent (the Content-Length header value
+  // will be set to the length of this data).
   virtual void SetUploadData(const std::string& upload_content_type,
                              const std::string& upload_content) = 0;
 
+  // Sets data only needed by POSTs.  All callers making POST requests should
+  // call one of the SetUpload* methods before the request is started.
+  // |upload_content_type| is the MIME type of the content, while
+  // |file_path| is the path to the file containing the data to be sent (the
+  // Content-Length header value will be set to the length of this file).
+  // |file_task_runner| will be used for all file operations.
+  virtual void SetUploadFilePath(
+      const std::string& upload_content_type,
+      const base::FilePath& file_path,
+      scoped_refptr<base::TaskRunner> file_task_runner) = 0;
+
   // Indicates that the POST data is sent via chunked transfer encoding.
   // This may only be called before calling Start().
   // Use AppendChunkToUpload() to give the data chunks after calling Start().