Factor out common Element struct from BlobData and ResourceRequestBody

content/common/fileapi/webblobregistry_impl.cc

Index: content/common/fileapi/webblobregistry_impl.cc
diff --git a/content/common/fileapi/webblobregistry_impl.cc b/content/common/fileapi/webblobregistry_impl.cc
index 9a80fb99764613d839425756681c770f8195b7c7..ba13a56a4ad3e12e8d7ce7d77d07ad959060bb24 100644
--- a/content/common/fileapi/webblobregistry_impl.cc
+++ b/content/common/fileapi/webblobregistry_impl.cc
@@ -42,7 +42,7 @@ void WebBlobRegistryImpl::registerBlobURL(
         if (data_item.data.size() == 0)
           break;
         if (data_item.data.size() < kLargeThresholdBytes) {
-          item.SetToData(data_item.data.data(), data_item.data.size());
+          item.SetToBytes(data_item.data.data(), data_item.data.size());
           child_thread_->Send(new BlobHostMsg_AppendBlobDataItem(url, item));
         } else {
           // We handle larger amounts of data via SharedMemory instead of
@@ -67,7 +67,7 @@ void WebBlobRegistryImpl::registerBlobURL(
       }
       case WebBlobData::Item::TypeFile:
         if (data_item.length) {
-          item.SetToFile(
+          item.SetToFilePathRange(
               webkit_glue::WebStringToFilePath(data_item.filePath),
               static_cast<uint64>(data_item.offset),
               static_cast<uint64>(data_item.length),
@@ -77,7 +77,7 @@ void WebBlobRegistryImpl::registerBlobURL(
         break;
       case WebBlobData::Item::TypeBlob:
         if (data_item.length) {
-          item.SetToBlob(
+          item.SetToBlobUrlRange(
               data_item.blobURL,
               static_cast<uint64>(data_item.offset),
               static_cast<uint64>(data_item.length));