Support handling blob URL and resolve blob references in upload data....

webkit/blob/blob_data.cc

 // Copyright (c) 2010 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.
 
 #include "webkit/blob/blob_data.h"
 
 #include "base/logging.h"
 #include "base/time.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebBlobData.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebCString.h"
@@ skipping 15 matching lines @@
 }
 
 namespace webkit_blob {
 
 BlobData::BlobData(const WebBlobData& data) {
   size_t i = 0;
   WebBlobData::Item item;
   while (data.itemAt(i++, item)) {
     switch (item.type) {
       case WebBlobData::Item::TypeData:
-        if (!item.data.isEmpty())
+        if (!item.data.isEmpty()) {
+          // WebBlobData does not allow partial data.
+          DCHECK(!item.offset && item.length == -1);
           AppendData(item.data);
+        }
         break;
       case WebBlobData::Item::TypeFile:
         AppendFile(
             webkit_glue::WebStringToFilePath(item.filePath),
             static_cast<uint64>(item.offset),
             static_cast<uint64>(item.length),
             DoubleTToTime(item.expectedModificationTime));
         break;
       case WebBlobData::Item::TypeBlob:
         if (item.length) {
           AppendBlob(
               item.blobURL,
               static_cast<uint64>(item.offset),
               static_cast<uint64>(item.length));
         }
         break;
       default:
         NOTREACHED();
     }
   }
   content_type_= data.contentType().utf8().data();
   content_disposition_ = data.contentDisposition().utf8().data();
 }
 
 }  // namespace webkit_blob