Use backticks not vertical bars to denote variables in comments for /api

Bug: webrtc:12338
Change-Id: Ib97b2c3d64dbd895f261ffa76a2e885bd934a87f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/226940
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34554}
diff --git a/api/test/network_emulation_manager.h b/api/test/network_emulation_manager.h
index ec51b29..9fe4ad5 100644
--- a/api/test/network_emulation_manager.h
+++ b/api/test/network_emulation_manager.h
@@ -130,7 +130,7 @@
   virtual std::vector<EmulatedEndpoint*> endpoints() const = 0;
 
   // Passes summarized network stats for endpoints for this manager into
-  // specified |stats_callback|. Callback will be executed on network emulation
+  // specified `stats_callback`. Callback will be executed on network emulation
   // internal task queue.
   virtual void GetStats(
       std::function<void(std::unique_ptr<EmulatedNetworkStats>)> stats_callback)
@@ -180,13 +180,13 @@
 
   // Creates an emulated network node, which represents single network in
   // the emulated network layer. Uses default implementation on network behavior
-  // which can be configured with |config|. |random_seed| can be provided to
+  // which can be configured with `config`. `random_seed` can be provided to
   // alter randomization behavior.
   virtual EmulatedNetworkNode* CreateEmulatedNode(
       BuiltInNetworkBehaviorConfig config,
       uint64_t random_seed = 1) = 0;
   // Creates an emulated network node, which represents single network in
-  // the emulated network layer. |network_behavior| determines how created node
+  // the emulated network layer. `network_behavior` determines how created node
   // will forward incoming packets to the next receiver.
   virtual EmulatedNetworkNode* CreateEmulatedNode(
       std::unique_ptr<NetworkBehaviorInterface> network_behavior) = 0;
@@ -205,8 +205,8 @@
 
   // Creates a route between endpoints going through specified network nodes.
   // This route is single direction only and describe how traffic that was
-  // sent by network interface |from| have to be delivered to the network
-  // interface |to|. Return object can be used to remove created route. The
+  // sent by network interface `from` have to be delivered to the network
+  // interface `to`. Return object can be used to remove created route. The
   // route must contains at least one network node inside it.
   //
   // Assume that E{0-9} are endpoints and N{0-9} are network nodes, then
@@ -228,7 +228,7 @@
       const std::vector<EmulatedNetworkNode*>& via_nodes,
       EmulatedEndpoint* to) = 0;
 
-  // Creates a route over the given |via_nodes| creating the required endpoints
+  // Creates a route over the given `via_nodes` creating the required endpoints
   // in the process. The returned EmulatedRoute pointer can be used in other
   // calls as a transport route for message or cross traffic.
   virtual EmulatedRoute* CreateRoute(
@@ -239,7 +239,7 @@
   // packet's destination IP.
   //
   // This route is single direction only and describe how traffic that was
-  // sent by network interface |from| have to be delivered in case if routing
+  // sent by network interface `from` have to be delivered in case if routing
   // was unspecified. Return object can be used to remove created route. The
   // route must contains at least one network node inside it.
   //
@@ -269,29 +269,29 @@
   // packets being dropped.
   virtual void ClearRoute(EmulatedRoute* route) = 0;
 
-  // Creates a simulated TCP connection using |send_route| for traffic and
-  // |ret_route| for feedback. This can be used to emulate HTTP cross traffic
+  // Creates a simulated TCP connection using `send_route` for traffic and
+  // `ret_route` for feedback. This can be used to emulate HTTP cross traffic
   // and to implement realistic reliable signaling over lossy networks.
   // TODO(srte): Handle clearing of the routes involved.
   virtual TcpMessageRoute* CreateTcpRoute(EmulatedRoute* send_route,
                                           EmulatedRoute* ret_route) = 0;
 
-  // Creates a route over the given |via_nodes|. Returns an object that can be
+  // Creates a route over the given `via_nodes`. Returns an object that can be
   // used to emulate network load with cross traffic over the created route.
   virtual CrossTrafficRoute* CreateCrossTrafficRoute(
       const std::vector<EmulatedNetworkNode*>& via_nodes) = 0;
 
-  // Starts generating cross traffic using given |generator|. Takes ownership
+  // Starts generating cross traffic using given `generator`. Takes ownership
   // over the generator.
   virtual CrossTrafficGenerator* StartCrossTraffic(
       std::unique_ptr<CrossTrafficGenerator> generator) = 0;
 
-  // Stops generating cross traffic that was started using given |generator|.
-  // The |generator| shouldn't be used after and the reference may be invalid.
+  // Stops generating cross traffic that was started using given `generator`.
+  // The `generator` shouldn't be used after and the reference may be invalid.
   virtual void StopCrossTraffic(CrossTrafficGenerator* generator) = 0;
 
   // Creates EmulatedNetworkManagerInterface which can be used then to inject
-  // network emulation layer into PeerConnection. |endpoints| - are available
+  // network emulation layer into PeerConnection. `endpoints` - are available
   // network interfaces for PeerConnection. If endpoint is enabled, it will be
   // immediately available for PeerConnection, otherwise user will be able to
   // enable endpoint later to make it available for PeerConnection.
@@ -299,8 +299,8 @@
   CreateEmulatedNetworkManagerInterface(
       const std::vector<EmulatedEndpoint*>& endpoints) = 0;
 
-  // Passes summarized network stats for specified |endpoints| into specified
-  // |stats_callback|. Callback will be executed on network emulation
+  // Passes summarized network stats for specified `endpoints` into specified
+  // `stats_callback`. Callback will be executed on network emulation
   // internal task queue.
   virtual void GetStats(
       rtc::ArrayView<EmulatedEndpoint* const> endpoints,