Support sending a sliced file in chromium....

webkit/glue/weburlloader_impl.cc

 // Copyright (c) 2006-2009 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.
 
 // An implementation of WebURLLoader in terms of ResourceLoaderBridge.
 
 #include "webkit/glue/weburlloader_impl.h"
 
 #include "base/file_path.h"
 #include "base/message_loop.h"
@@ skipping 357 matching lines @@
       switch (element.type) {
         case WebHTTPBody::Element::TypeData:
           if (!element.data.isEmpty()) {
             // WebKit sometimes gives up empty data to append. These aren't
             // necessary so we just optimize those out here.
             bridge_->AppendDataToUpload(
                 element.data.data(), static_cast<int>(element.data.size()));
           }
           break;
         case WebHTTPBody::Element::TypeFile:
-          bridge_->AppendFileToUpload(WebStringToFilePath(element.filePath));
+          if (element.fileLength == -1) {
+            bridge_->AppendFileToUpload(
+                WebStringToFilePath(element.filePath));
+          } else {
+            bridge_->AppendFileRangeToUpload(
+                WebStringToFilePath(element.filePath),
+                static_cast<uint64>(element.fileStart),
+                static_cast<uint64>(element.fileLength),
+                base::Time::FromDoubleT(element.fileInfo.modificationTime));
+          }
           break;
         default:
           NOTREACHED();
       }
     }
     bridge_->SetUploadIdentifier(request.httpBody().identifier());
   }
 
   if (sync_load_response) {
     bridge_->SyncLoad(sync_load_response);
@@ skipping 226 matching lines @@
 
 void WebURLLoaderImpl::cancel() {
   context_->Cancel();
 }
 
 void WebURLLoaderImpl::setDefersLoading(bool value) {
   context_->SetDefersLoading(value);
 }
 
 }  // namespace webkit_glue