Reland #1 "ipc: Add a new field num_brokered_attachments to the message header."

content/child/resource_dispatcher.cc

Index: content/child/resource_dispatcher.cc
diff --git a/content/child/resource_dispatcher.cc b/content/child/resource_dispatcher.cc
index a3114b2ecd70d2586237dc3d38a5e774a3556854..b142bc6839784be08a819a1c227aff45bf27bc3c 100644
--- a/content/child/resource_dispatcher.cc
+++ b/content/child/resource_dispatcher.cc
@@ -221,6 +221,11 @@ void ResourceDispatcher::OnReceivedData(int request_id,
   PendingRequestInfo* request_info = GetPendingRequestInfo(request_id);
   bool send_ack = true;
   if (request_info && data_length > 0) {
+    // TODO(erikchen): Temporary code to help track http://crbug.com/527588.
+    base::debug::Alias(request_info);
+    int buffer_size = request_info->buffer_size;
+    base::debug::Alias(&buffer_size);
+
     CHECK(base::SharedMemory::IsHandleValid(request_info->buffer->handle()));
     CHECK_GE(request_info->buffer_size, data_offset + data_length);