use request structs for InitChain and BeginBlock

example/block_aware/block_aware_app.go

@@ -55,7 +55,7 @@ func (app *ChainAwareApplication) Query(reqQuery types.RequestQuery) (resQuery t
 	}
 }
 
-func (app *ChainAwareApplication) BeginBlock(hash []byte, header *types.Header) {
+func (app *ChainAwareApplication) BeginBlock(reqBeginBlock types.RequestBeginBlock) {
 	app.beginCount++
 	return
 }

example/block_aware/block_aware_test.go

@@ -37,7 +37,7 @@ func TestChainAware(t *testing.T) {
 	hash := []byte("fake block hash")
 	header := &types.Header{}
 	for i := uint64(0); i < n; i++ {
-		client.BeginBlockSync(hash, header)
+		client.BeginBlockSync(&types.RequestBeginBlock{hash, header})
 		client.EndBlockSync(i)
 		client.CommitSync()
 	}