Makes the `FLAGS_` prefix implicit in calls to `GetQuicFlag()`.
This refactoring will allow us to define separate sets of flags for QUICHE in google3 vs //third_party/envoy/external_quiche. This will be necessary to import upstream Envoy PR [#22907](https://github.com/envoyproxy/envoy/pull/22907).
CL automatically created by:
```
replace_string \
'GetQuicFlag\(FLAGS_' \
'GetQuicFlag('
replace_string \
'SetQuicFlag\(FLAGS_' \
'SetQuicFlag('
```
Tested:
```
$ blaze test //third_party/quic/core/... //gfe/gfe2/quic:all //net/quic/... //third_party/castlite/agent/net/... //video/streaming/quic:all
http://sponge2/e6f39d62-e455-451e-ae09-84ebb20806b8
```
PiperOrigin-RevId: 473802782
diff --git a/quiche/quic/core/quic_versions.cc b/quiche/quic/core/quic_versions.cc
index df43ce7..cc9065b 100644
--- a/quiche/quic/core/quic_versions.cc
+++ b/quiche/quic/core/quic_versions.cc
@@ -25,7 +25,7 @@
QuicVersionLabel CreateRandomVersionLabelForNegotiation() {
QuicVersionLabel result;
- if (!GetQuicFlag(FLAGS_quic_disable_version_negotiation_grease_randomness)) {
+ if (!GetQuicFlag(quic_disable_version_negotiation_grease_randomness)) {
QuicRandom::GetInstance()->RandBytes(&result, sizeof(result));
} else {
result = MakeVersionLabel(0xd1, 0x57, 0x38, 0x3f);