Blob support for IDB [Chromium]

content/child/indexed_db/proxy_webidbcursor_impl.cc

 // Copyright 2013 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 "content/child/indexed_db/proxy_webidbcursor_impl.h"
 
 #include <vector>
 
 #include "content/child/thread_safe_sender.h"
 #include "content/child/indexed_db/indexed_db_dispatcher.h"
@@ skipping 100 matching lines @@
   // If not, it means the callback did something else, or nothing at all,
   // in which case we need to reset the cache.
 
   if (pending_onsuccess_callbacks_ == 0)
     ResetPrefetchCache();
 }
 
 void RendererWebIDBCursorImpl::SetPrefetchData(
     const std::vector<IndexedDBKey>& keys,
     const std::vector<IndexedDBKey>& primary_keys,
-    const std::vector<WebData>& values) {
+    const std::vector<WebData>& values,
+    const std::vector<blink::WebVector<blink::WebBlobInfo> >& blob_info) {
   prefetch_keys_.assign(keys.begin(), keys.end());
   prefetch_primary_keys_.assign(primary_keys.begin(), primary_keys.end());
   prefetch_values_.assign(values.begin(), values.end());
+  prefetch_blob_info_.assign(blob_info.begin(), blob_info.end());
 
   used_prefetches_ = 0;
   pending_onsuccess_callbacks_ = 0;
 }
 
 void RendererWebIDBCursorImpl::CachedContinue(WebIDBCallbacks* callbacks) {
   DCHECK_GT(prefetch_keys_.size(), 0ul);
   DCHECK(prefetch_primary_keys_.size() == prefetch_keys_.size());
   DCHECK(prefetch_values_.size() == prefetch_keys_.size());
+  DCHECK(prefetch_blob_info_.size() == prefetch_keys_.size());
 
   IndexedDBKey key = prefetch_keys_.front();
   IndexedDBKey primary_key = prefetch_primary_keys_.front();
   // this could be a real problem.. we need 2 CachedContinues
   WebData value = prefetch_values_.front();
+  blink::WebVector<blink::WebBlobInfo> blob_info =
+      prefetch_blob_info_.front();
 
   prefetch_keys_.pop_front();
   prefetch_primary_keys_.pop_front();
   prefetch_values_.pop_front();
+  prefetch_blob_info_.pop_front();
   used_prefetches_++;
 
   pending_onsuccess_callbacks_++;
 
   callbacks->onSuccess(WebIDBKeyBuilder::Build(key),
-                       WebIDBKeyBuilder::Build(primary_key), value);
+                       WebIDBKeyBuilder::Build(primary_key), value, blob_info);
 }
 
 void RendererWebIDBCursorImpl::ResetPrefetchCache() {
   continue_count_ = 0;
   prefetch_amount_ = kMinPrefetchAmount;
 
   if (!prefetch_keys_.size()) {
     // No prefetch cache, so no need to reset the cursor in the back-end.
     return;
   }
 
   IndexedDBDispatcher* dispatcher =
       IndexedDBDispatcher::ThreadSpecificInstance(thread_safe_sender_.get());
   dispatcher->RequestIDBCursorPrefetchReset(
       used_prefetches_, prefetch_keys_.size(), ipc_cursor_id_);
   prefetch_keys_.clear();
   prefetch_primary_keys_.clear();
   prefetch_values_.clear();
+  prefetch_blob_info_.clear();
 
   pending_onsuccess_callbacks_ = 0;
 }
 
 }  // namespace content