Use modern c++ code style for incidentd.

This cl does not contain code logic changes.

Bug: 77333635
Test: manual and incidentd_test
Change-Id: Iea0a402b1051defd45159ca267e6dd705f9ffa49
diff --git a/cmds/incidentd/src/Reporter.h b/cmds/incidentd/src/Reporter.h
index f9a092a..45fd944 100644
--- a/cmds/incidentd/src/Reporter.h
+++ b/cmds/incidentd/src/Reporter.h
@@ -30,9 +30,9 @@
 #include "Throttler.h"
 #include "frameworks/base/libs/incident/proto/android/os/metadata.pb.h"
 
-using namespace android;
-using namespace android::os;
-using namespace std;
+namespace android {
+namespace os {
+namespace incidentd {
 
 // ================================================================================
 struct ReportRequest : public virtual RefBase {
@@ -110,4 +110,8 @@
     bool isTest = true;  // default to true for testing
 };
 
+}  // namespace incidentd
+}  // namespace os
+}  // namespace android
+
 #endif  // REPORTER_H