tls: use absl::string_view when calling absl::StrReplaceAll(). (#2520)
tls: use absl::string_view when calling absl::StrReplaceAll(). (#2520)

This change is triggered by Google import, which uses different string type,
and not by any performance issues with existing code.

Signed-off-by: Piotr Sikora <ba6f3a1a6d7e1ecae91b31e93969cc392fbd0fdd@google.com>

lyft/envoy,craffert0/envoy,jrajahalme/envoy,eklitzke/envoy,envoyproxy/envoy,istio/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy-wasm,envoyproxy/envoy,istio/envoy,sebrandon1/envoy,jrajahalme/envoy,eklitzke/envoy,eklitzke/envoy,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy,dnoe/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,istio/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,dnoe/envoy,lyft/envoy,lyft/envoy,dnoe/envoy,lizan/envoy,eklitzke/envoy,craffert0/envoy,jrajahalme/envoy,jrajahalme/envoy,dnoe/envoy,eklitzke/envoy,lizan/envoy,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,lizan/envoy,eklitzke/envoy,istio/envoy,sebrandon1/envoy,envoyproxy/envoy-wasm,istio/envoy,istio/envoy,envoyproxy/envoy-wasm,sebrandon1/envoy,sebrandon1/envoy,envoyproxy/envoy,dnoe/envoy,envoyproxy/envoy,sebrandon1/envoy,envoyproxy/envoy,jrajahalme/envoy,jrajahalme/envoy,craffert0/envoy,lizan/envoy,lyft/envoy,istio/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,craffert0/envoy,lyft/envoy