whisper: use common.Hash

whisper/sort.go

@@ -1,6 +1,10 @@
 package whisper
 
-import "sort"
+import (
+	"sort"
+
+	"github.com/ethereum/go-ethereum/common"
+)
 
 type sortedKeys struct {
 	k []int32
@@ -10,7 +14,7 @@ func (self *sortedKeys) Len() int           { return len(self.k) }
 func (self *sortedKeys) Less(i, j int) bool { return self.k[i] < self.k[j] }
 func (self *sortedKeys) Swap(i, j int)      { self.k[i], self.k[j] = self.k[j], self.k[i] }
 
-func sortKeys(m map[int32]Hash) []int32 {
+func sortKeys(m map[int32]common.Hash) []int32 {
 	sorted := new(sortedKeys)
 	sorted.k = make([]int32, len(m))
 	i := 0