Stop using ScopedAllowIO in content::ResourceDispatcherHostImpl

content/browser/renderer_host/resource_dispatcher_host_impl.cc

Index: content/browser/renderer_host/resource_dispatcher_host_impl.cc
diff --git a/content/browser/renderer_host/resource_dispatcher_host_impl.cc b/content/browser/renderer_host/resource_dispatcher_host_impl.cc
index 205993824612efaa6fe85cfdb8091d4e62305292..450641e0148f93008071c2abdd3fbe72402ac1de 100644
--- a/content/browser/renderer_host/resource_dispatcher_host_impl.cc
+++ b/content/browser/renderer_host/resource_dispatcher_host_impl.cc
@@ -21,7 +21,6 @@
 #include "base/shared_memory.h"
 #include "base/stl_util.h"
 #include "base/third_party/dynamic_annotations/dynamic_annotations.h"
-#include "base/threading/thread_restrictions.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/cert_store_impl.h"
 #include "content/browser/child_process_security_policy_impl.h"
@@ -958,14 +957,10 @@ void ResourceDispatcherHostImpl::BeginRequest(
   request->set_priority(DetermineRequestPriority(request_data.resource_type));
 
   // Resolve elements from request_body and prepare upload data.
-  uint64 upload_size = 0;
   if (request_data.request_body) {
     request->set_upload(
         request_data.request_body->ResolveElementsAndCreateUploadData(
             GetBlobStorageControllerForResourceContext(resource_context)));
-    // This results in performing file IO. crbug.com/112607.
-    base::ThreadRestrictions::ScopedAllowIO allow_io;
-    upload_size = request->get_upload_mutable()->GetContentLengthSync();
   }
 
   bool allow_download = request_data.allow_download &&
@@ -985,7 +980,6 @@ void ResourceDispatcherHostImpl::BeginRequest(
           request_data.parent_frame_id,
           request_data.resource_type,
           request_data.transition_type,
-          upload_size,
           false,  // is download
           allow_download,
           request_data.has_user_gesture,
@@ -1185,7 +1179,6 @@ ResourceRequestInfoImpl* ResourceDispatcherHostImpl::CreateRequestInfo(
       -1,        // parent_frame_id
       ResourceType::SUB_RESOURCE,
       PAGE_TRANSITION_LINK,
-      0,         // upload_size
       download,  // is_download
       download,  // allow_download
       false,     // has_user_gesture
@@ -1592,7 +1585,7 @@ void ResourceDispatcherHostImpl::UpdateLoadStates() {
   for (i = pending_loaders_.begin(); i != pending_loaders_.end(); ++i) {
     net::URLRequest* request = i->second->request();
     ResourceRequestInfoImpl* info = i->second->GetRequestInfo();
-    uint64 upload_size = info->GetUploadSize();
+    uint64 upload_size = request->GetUploadProgress().size();
     if (request->GetLoadState().state != net::LOAD_STATE_SENDING_REQUEST)
       upload_size = 0;
     std::pair<int, int> key(info->GetChildID(), info->GetRouteID());
@@ -1604,6 +1597,7 @@ void ResourceDispatcherHostImpl::UpdateLoadStates() {
     net::URLRequest* request = i->second->request();
     ResourceRequestInfoImpl* info = i->second->GetRequestInfo();
     net::LoadStateWithParam load_state = request->GetLoadState();
+    net::UploadProgress progress = request->GetUploadProgress();
 
     // We also poll for upload progress on this timer and send upload
     // progress ipc messages to the plugin process.
@@ -1614,7 +1608,7 @@ void ResourceDispatcherHostImpl::UpdateLoadStates() {
     // If a request is uploading data, ignore all other requests so that the
     // upload progress takes priority for being shown in the status bar.
     if (largest_upload_size.find(key) != largest_upload_size.end() &&
-        info->GetUploadSize() < largest_upload_size[key])
+        progress.size() < largest_upload_size[key])
       continue;
 
     net::LoadStateWithParam to_insert = load_state;
@@ -1628,8 +1622,8 @@ void ResourceDispatcherHostImpl::UpdateLoadStates() {
     LoadInfo& load_info = info_map[key];
     load_info.url = request->url();
     load_info.load_state = to_insert;
-    load_info.upload_size = info->GetUploadSize();
-    load_info.upload_position = request->GetUploadProgress();
+    load_info.upload_size = progress.size();
+    load_info.upload_position = progress.position();
   }
 
   if (info_map.empty())