Support FileSystem URL in File object

webkit/blob/blob_data.cc

Index: webkit/blob/blob_data.cc
diff --git a/webkit/blob/blob_data.cc b/webkit/blob/blob_data.cc
index e000ee27b674b6f1d0c946abfedd650166409ca3..2f62e32f04e37445f360a2d6bd397e47ca646af3 100644
--- a/webkit/blob/blob_data.cc
+++ b/webkit/blob/blob_data.cc
@@ -36,6 +36,16 @@ void BlobData::AppendBlob(const GURL& blob_url, uint64 offset, uint64 length) {
   items_.back().SetToBlobUrlRange(blob_url, offset, length);
 }
 
+void BlobData::AppendFileSystemFile(
+    const GURL& url, uint64 offset,
+    uint64 length,
+    const base::Time& expected_modification_time) {
+  DCHECK(length > 0);
+  items_.push_back(Item());
+  items_.back().SetToFileSystemUrlRange(url, offset, length,
+                                        expected_modification_time);
+}
+
 int64 BlobData::GetMemoryUsage() const {
   int64 memory = 0;
   for (std::vector<Item>::const_iterator iter = items_.begin();