Offload disk accesses to WorkerPool in ExtensionProtocolHandler

net/url_request/url_request_data_job.cc

Index: net/url_request/url_request_data_job.cc
===================================================================
--- net/url_request/url_request_data_job.cc	(revision 145483)
+++ net/url_request/url_request_data_job.cc	(working copy)
@@ -7,6 +7,7 @@
 #include "net/url_request/url_request_data_job.h"
 
 #include "net/base/data_url.h"
+#include "net/base/net_errors.h"
 
 namespace net {
 
@@ -20,15 +21,16 @@
   return new URLRequestDataJob(request);
 }
 
-bool URLRequestDataJob::GetData(std::string* mime_type,
-                                std::string* charset,
-                                std::string* data) const {
+int URLRequestDataJob::GetData(std::string* mime_type,
+                               std::string* charset,
+                               std::string* data,
+                               const CompletionCallback& callback) const {
   // Check if data URL is valid. If not, don't bother to try to extract data.
   // Otherwise, parse the data from the data URL.
   const GURL& url = request_->url();
   if (!url.is_valid())
-    return false;
-  return DataURL::Parse(url, mime_type, charset, data);
+    return ERR_INVALID_URL;
+  return DataURL::Parse(url, mime_type, charset, data)? OK: ERR_INVALID_URL;
 }
 
 URLRequestDataJob::~URLRequestDataJob() {