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

Bug: webrtc:12338
Change-Id: Ifaad29ccb63b0f2f3aeefb77dae061ebc7f87e6c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/227024
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34561}
diff --git a/sdk/android/api/org/webrtc/SurfaceViewRenderer.java b/sdk/android/api/org/webrtc/SurfaceViewRenderer.java
index f62d274..6c9140a 100644
--- a/sdk/android/api/org/webrtc/SurfaceViewRenderer.java
+++ b/sdk/android/api/org/webrtc/SurfaceViewRenderer.java
@@ -64,7 +64,7 @@
   }
 
   /**
-   * Initialize this class, sharing resources with |sharedContext|. It is allowed to call init() to
+   * Initialize this class, sharing resources with `sharedContext`. It is allowed to call init() to
    * reinitialize the renderer after a previous init()/release() cycle.
    */
   public void init(EglBase.Context sharedContext, RendererCommon.RendererEvents rendererEvents) {
@@ -72,9 +72,9 @@
   }
 
   /**
-   * Initialize this class, sharing resources with |sharedContext|. The custom |drawer| will be used
+   * Initialize this class, sharing resources with `sharedContext`. The custom `drawer` will be used
    * for drawing frames on the EGLSurface. This class is responsible for calling release() on
-   * |drawer|. It is allowed to call init() to reinitialize the renderer after a previous
+   * `drawer`. It is allowed to call init() to reinitialize the renderer after a previous
    * init()/release() cycle.
    */
   public void init(final EglBase.Context sharedContext,