Chromium Blob hacking

webkit/browser/blob/blob_storage_context.cc

Index: webkit/browser/blob/blob_storage_context.cc
diff --git a/webkit/browser/blob/blob_storage_context.cc b/webkit/browser/blob/blob_storage_context.cc
index 4a0260736a03251eb2a92b7ac1a307d202ba87c4..34a1bee59df78b0dbf010f5308d3c14ef14cd303 100644
--- a/webkit/browser/blob/blob_storage_context.cc
+++ b/webkit/browser/blob/blob_storage_context.cc
@@ -94,6 +94,14 @@ scoped_ptr<BlobDataHandle> BlobStorageContext::AddFinishedBlob(
   return handle.Pass();
 }
 
+std::string BlobStorageContext::LookupUuidFromDeprecatedURL(
+    const GURL& url) {
+  BlobURLMap::const_iterator found = deprecated_blob_urls_.find(url);
+  if (found == deprecated_blob_urls_.end())
+    return std::string();
+  return found->second;
+}
+
 void BlobStorageContext::StartBuildingBlob(const std::string& uuid) {
   DCHECK(!IsInUse(uuid) && !uuid.empty());
   blob_map_[uuid] = BlobMapEntry(1, BEING_BUILT, new BlobData(uuid));
@@ -146,7 +154,10 @@ void BlobStorageContext::AppendBlobDataItem(
                                item.expected_modification_time());
       break;
     case BlobData::Item::TYPE_BLOB: {
-      scoped_ptr<BlobDataHandle> src = GetBlobDataFromUUID(item.blob_uuid());
+      scoped_ptr<BlobDataHandle> src = GetBlobDataFromUUID(
+          item.blob_uuid().empty()
+          ? LookupUuidFromDeprecatedURL(item.blob_url())
+          : item.blob_uuid());
       if (src)
         exceeded_memory = !ExpandStorageItems(target_blob_data,
                                               src->data(),
@@ -222,6 +233,21 @@ void BlobStorageContext::RevokePublicBlobURL(const GURL& blob_url) {
   public_blob_urls_.erase(blob_url);
 }
 
+void BlobStorageContext::DeprecatedRegisterPrivateBlobURL(
+    const GURL& url, const std::string& uuid) {
+  if (!IsInUse(uuid))
+    return;
+  IncrementBlobRefCount(uuid);
+  deprecated_blob_urls_[url] = uuid;
+}
+
+void BlobStorageContext::DeprecatedRevokePrivateBlobURL(const GURL& url) {
+  if (deprecated_blob_urls_.find(url) == deprecated_blob_urls_.end())
+    return;
+  DecrementBlobRefCount(deprecated_blob_urls_[url]);
+  deprecated_blob_urls_.erase(url);
+}
+
 bool BlobStorageContext::ExpandStorageItems(
     BlobData* target_blob_data, BlobData* src_blob_data,
     uint64 offset, uint64 length) {