1 files changed, 4 insertions, 1 deletions
diff --git a/cc/resources/resource_pool.cc b/cc/resources/resource_pool.cc
index bb22b79..23a6233 100644
--- a/cc/resources/resource_pool.cc
+++ b/cc/resources/resource_pool.cc
@@ -187,12 +187,15 @@ void ResourcePool::DeleteResource(ScopedResource* resource) {
   delete resource;
 }
 
-void ResourcePool::CheckBusyResources() {
+void ResourcePool::CheckBusyResources(bool wait_if_needed) {
   ResourceList::iterator it = busy_resources_.begin();
 
   while (it != busy_resources_.end()) {
     ScopedResource* resource = it->resource;
 
+    if (wait_if_needed)
+      resource_provider_->WaitReadLockIfNeeded(resource->id());
+
     if (resource_provider_->CanLockForWrite(resource->id())) {
       DidFinishUsingResource(resource, it->content_id);
       it = busy_resources_.erase(it);