Logging and check fail crbug/612358

storage/browser/blob/blob_reader.cc

Index: storage/browser/blob/blob_reader.cc
diff --git a/storage/browser/blob/blob_reader.cc b/storage/browser/blob/blob_reader.cc
index 2eafdbcc77e6fcdbc8e4ef1d00248d3f5db4f22e..0fae3f21ac2a14ed0e144ee37918ae9f174a52f0 100644
--- a/storage/browser/blob/blob_reader.cc
+++ b/storage/browser/blob/blob_reader.cc
@@ -84,9 +84,11 @@ BlobReader::Status BlobReader::CalculateSize(
   DCHECK(!total_size_calculated_);
   DCHECK(size_callback_.is_null());
   if (!blob_handle_.get() || blob_handle_->IsBroken()) {
+    LOG(ERROR) << "Broken blob, or non existant";
     return ReportError(net::ERR_FILE_NOT_FOUND);
   }
   if (blob_handle_->IsBeingBuilt()) {
+    LOG(ERROR) << blob_handle_->uuid() << " blob still being built";
     blob_handle_->RunOnConstructionComplete(base::Bind(
         &BlobReader::AsyncCalculateSize, weak_factory_.GetWeakPtr(), done));
     return Status::IO_PENDING;
@@ -248,6 +250,7 @@ void BlobReader::InvalidateCallbacksAndDone(int net_error,
 }
 
 BlobReader::Status BlobReader::ReportError(int net_error) {
+  LOG(ERROR) << "Reporting error << " << net_error;
   net_error_ = net_error;
   return Status::NET_ERROR;
 }
@@ -256,9 +259,11 @@ void BlobReader::AsyncCalculateSize(const net::CompletionCallback& done,
                                     bool async_succeeded,
                                     IPCBlobCreationCancelCode reason) {
   if (!async_succeeded) {
+    LOG(ERROR) << "Blob construction failed";
     InvalidateCallbacksAndDone(ConvertBlobErrorToNetError(reason), done);
     return;
   }
+  LOG(ERROR) << blob_handle_->uuid() << " consruction done";
   DCHECK(!blob_handle_->IsBroken()) << "Callback should have returned false.";
   blob_data_ = blob_handle_->CreateSnapshot();
   Status size_status = CalculateSizeImpl(done);