dashboard/app: pass namespace in bug reports

Namespace can be used for some customization
in external reporter.

dashboard/app/reporting.go

@@ -214,6 +214,7 @@ func createBugReport(c context.Context, bug *Bug, crash *Crash, bugReporting *Bu
 	}
 
 	rep := &dashapi.BugReport{
+		Namespace:    bug.Namespace,
 		Config:       reportingConfig,
 		ID:           bugReporting.ID,
 		ExtID:        bugReporting.ExtID,

dashboard/app/reporting_test.go

@@ -46,6 +46,7 @@ func TestReportBug(t *testing.T) {
 		t.Fatalf("empty report ID")
 	}
 	want := &dashapi.BugReport{
+		Namespace:    "test1",
 		Config:       []byte(`{"Index":1}`),
 		ID:           rep.ID,
 		First:        true,
@@ -183,6 +184,7 @@ func TestInvalidBug(t *testing.T) {
 		t.Fatalf("empty report ID")
 	}
 	want := &dashapi.BugReport{
+		Namespace:    "test1",
 		Config:       []byte(`{"Index":1}`),
 		ID:           rep.ID,
 		First:        true,

dashboard/dashapi/dashapi.go

@@ -137,6 +137,7 @@ func (dash *Dashboard) LogError(name, msg string, args ...interface{}) {
 // BugReport describes a single bug.
 // Used by dashboard external reporting.
 type BugReport struct {
+	Namespace    string
 	Config       []byte
 	ID           string
 	ExtID        string // arbitrary reporting ID forwarded from BugUpdate.ExtID