LogDog: Add log rendering view.

common/logdog/fetcher/fetcher.go

Index: common/logdog/fetcher/fetcher.go
diff --git a/common/logdog/fetcher/fetcher.go b/common/logdog/fetcher/fetcher.go
index 279993d2e8475716dc94821ab5abb3ff67a1d072..ab1865d440fd1d4252385af09101fc6629e7f007 100644
--- a/common/logdog/fetcher/fetcher.go
+++ b/common/logdog/fetcher/fetcher.go
@@ -31,7 +31,7 @@ type LogRequest struct {
 	// Index is the starting log index to request.
 	Index types.MessageIndex
 	// Count, if >0, is the maximum number of log entries to request.
-	Count int
+	Count int64
 	// Bytes, if >0, is the maximum number of log bytes to request. At least one
 	// log must be returned regardless of the byte limit.
 	Bytes int64
@@ -160,7 +160,7 @@ func (f *Fetcher) NextLogEntry() (*logpb.LogEntry, error) {
 
 type fetchRequest struct {
 	index types.MessageIndex
-	count int
+	count int64
 	bytes int64
 	respC chan *fetchResponse
 }
@@ -252,7 +252,7 @@ func (f *Fetcher) fetch(c context.Context) {
 				logFetchC = logFetchBaseC
 				req := fetchRequest{
 					index: nextFetchIndex,
-					count: int(fetchCount),
+					count: fetchCount,
 					bytes: fetchBytes,
 					respC: logFetchC,
 				}
@@ -362,7 +362,7 @@ func (f *Fetcher) fetchLogs(c context.Context, req *fetchRequest) {
 				"index": req.index,
 				"delay": f.o.Delay,
 			}.Infof(c, "No logs returned. Sleeping...")
-			clock.Sleep(c, f.o.Delay)
+			clock.CancelSleep(c, f.o.Delay)
 		}
 	}
 }