Refactor name of function

This change will make is easier to understand what is actually going
on i.e. we're getting a clone and not the original version of
inflightRequests.

Resolves: #630 (comment)

Author: ankur22

common/frame.go

@@ -148,7 +148,7 @@ func (f *Frame) inflightRequestsLen() int {
 	return len(f.inflightRequests)
 }
 
-func (f *Frame) getInflightRequest() map[network.RequestID]bool {
+func (f *Frame) cloneInflightRequests() map[network.RequestID]bool {
 	f.inflightRequestsMu.RLock()
 	defer f.inflightRequestsMu.RUnlock()
 

common/frame_manager.go

@@ -446,7 +446,7 @@ func (m *FrameManager) requestFailed(req *Request, canceled bool) {
 	}
 	frame.deleteRequest(req.getID())
 
-	ifr := frame.getInflightRequest()
+	ifr := frame.cloneInflightRequests()
 	switch rc := len(ifr); {
 	case rc == 0:
 		frame.startNetworkIdleTimer()