Move NetworkSlice enum to network_constants. Alongside AdapterType, this allows referencing NetworkSlice from api/ and elsewhere via a smaller, cleaner library. Bug: webrtc:494142581 Change-Id: I5dffd985eda37b582de942deb74aa879989ef312 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/461560 Reviewed-by: Jonas Oreland <jonaso@webrtc.org> Commit-Queue: Sameer Vijaykar <samvi@google.com> Cr-Commit-Position: refs/heads/main@{#47330}

diff --git a/rtc_base/BUILD.gn b/rtc_base/BUILD.gn
index 380090a..f895f0b 100644
--- a/rtc_base/BUILD.gn
+++ b/rtc_base/BUILD.gn

@@ -1141,7 +1141,10 @@
     "network_constants.cc",
     "network_constants.h",
   ]
-  deps = [ ":checks" ]
+  deps = [
+    ":checks",
+    "//third_party/abseil-cpp/absl/strings:string_view",
+  ]
 }
 
 if (is_android) {

diff --git a/rtc_base/network_constants.cc b/rtc_base/network_constants.cc
index 9c56660..3192636 100644
--- a/rtc_base/network_constants.cc
+++ b/rtc_base/network_constants.cc

@@ -12,6 +12,7 @@
 
 #include <string>
 
+#include "absl/strings/string_view.h"
 #include "rtc_base/checks.h"
 
 namespace webrtc {
@@ -46,4 +47,13 @@
   }
 }
 
+absl::string_view NetworkSliceToString(NetworkSlice network_slice) {
+  switch (network_slice) {
+    case NetworkSlice::NO_SLICE:
+      return "NO_SLICE";
+    case NetworkSlice::UNIFIED_COMMUNICATIONS:
+      return "UNIFIED_COMMUNICATIONS";
+  }
+}
+
 }  // namespace webrtc

diff --git a/rtc_base/network_constants.h b/rtc_base/network_constants.h
index 8c43576..8511405 100644
--- a/rtc_base/network_constants.h
+++ b/rtc_base/network_constants.h

@@ -15,6 +15,8 @@
 
 #include <string>
 
+#include "absl/strings/string_view.h"
+
 namespace webrtc {
 
 constexpr uint16_t kNetworkCostMax = 999;
@@ -85,6 +87,18 @@
     ADAPTER_TYPE_CELLULAR_5G,
 };
 
+// Network slice is a property of a network, primarily used in 5G and beyond.
+// It allows for the creation of multiple logical networks on a shared physical
+// infrastructure, each optimized for specific use cases. This is not about
+// whether the network is 3G/4G/5G/6G, but rather a feature available within
+// some of those network generations (e.g., 5G).
+enum class NetworkSlice {
+  NO_SLICE = 0,
+  UNIFIED_COMMUNICATIONS = 1,
+};
+
+absl::string_view NetworkSliceToString(NetworkSlice network_slice);
+
 }  //  namespace webrtc
 
 

diff --git a/rtc_base/network_monitor.cc b/rtc_base/network_monitor.cc
index 2595b68..bf44635 100644
--- a/rtc_base/network_monitor.cc
+++ b/rtc_base/network_monitor.cc

@@ -23,15 +23,6 @@
   }
 }
 
-absl::string_view NetworkSliceToString(NetworkSlice network_slice) {
-  switch (network_slice) {
-    case NetworkSlice::NO_SLICE:
-      return "NO_SLICE";
-    case NetworkSlice::UNIFIED_COMMUNICATIONS:
-      return "UNIFIED_COMMUNICATIONS";
-  }
-}
-
 NetworkMonitorInterface::NetworkMonitorInterface() {}
 NetworkMonitorInterface::~NetworkMonitorInterface() {}
 

diff --git a/rtc_base/network_monitor.h b/rtc_base/network_monitor.h
index 10889af..8489f7a 100644
--- a/rtc_base/network_monitor.h
+++ b/rtc_base/network_monitor.h

@@ -36,18 +36,7 @@
   NOT_PREFERRED = -1,
 };
 
-// Network slice is a property of a network, primarily used in 5G and beyond.
-// It allows for the creation of multiple logical networks on a shared physical
-// infrastructure, each optimized for specific use cases. This is not about
-// whether the network is 3G/4G/5G/6G, but rather a feature available within
-// some of those network generations (e.g., 5G).
-enum class NetworkSlice {
-  NO_SLICE = 0,
-  UNIFIED_COMMUNICATIONS = 1,
-};
-
 absl::string_view NetworkPreferenceToString(NetworkPreference preference);
-absl::string_view NetworkSliceToString(NetworkSlice network_slice);
 
 // This interface is set onto a socket server,
 // where only the ip address is known at the time of binding.