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/SurfaceTextureHelper.java b/sdk/android/api/org/webrtc/SurfaceTextureHelper.java
index 0dd45cf..085576b 100644
--- a/sdk/android/api/org/webrtc/SurfaceTextureHelper.java
+++ b/sdk/android/api/org/webrtc/SurfaceTextureHelper.java
@@ -48,7 +48,7 @@
 
   private static final String TAG = "SurfaceTextureHelper";
   /**
-   * Construct a new SurfaceTextureHelper sharing OpenGL resources with |sharedContext|. A dedicated
+   * Construct a new SurfaceTextureHelper sharing OpenGL resources with `sharedContext`. A dedicated
    * thread and handler is created for handling the SurfaceTexture. May return null if EGL fails to
    * initialize a pixel buffer surface and make it current. If alignTimestamps is true, the frame
    * timestamps will be aligned to rtc::TimeNanos(). If frame timestamps are aligned to
@@ -66,7 +66,7 @@
     // The onFrameAvailable() callback will be executed on the SurfaceTexture ctor thread. See:
     // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/5.1.1_r1/android/graphics/SurfaceTexture.java#195.
     // Therefore, in order to control the callback thread on API lvl < 21, the SurfaceTextureHelper
-    // is constructed on the |handler| thread.
+    // is constructed on the `handler` thread.
     return ThreadUtils.invokeAtFrontUninterruptibly(handler, new Callable<SurfaceTextureHelper>() {
       @Nullable
       @Override
@@ -147,7 +147,7 @@
   @Nullable private final TimestampAligner timestampAligner;
   private final FrameRefMonitor frameRefMonitor;
 
-  // These variables are only accessed from the |handler| thread.
+  // These variables are only accessed from the `handler` thread.
   @Nullable private VideoSink listener;
   // The possible states of this class.
   private boolean hasPendingTexture;
@@ -156,7 +156,7 @@
   private int frameRotation;
   private int textureWidth;
   private int textureHeight;
-  // |pendingListener| is set in setListener() and the runnable is posted to the handler thread.
+  // `pendingListener` is set in setListener() and the runnable is posted to the handler thread.
   // setListener() is not allowed to be called again before stopListening(), so this is thread safe.
   @Nullable private VideoSink pendingListener;
   final Runnable setListenerRunnable = new Runnable() {
@@ -223,7 +223,7 @@
   }
 
   /**
-   * Start to stream textures to the given |listener|. If you need to change listener, you need to
+   * Start to stream textures to the given `listener`. If you need to change listener, you need to
    * call stopListening() first.
    */
   public void startListening(final VideoSink listener) {
@@ -331,7 +331,7 @@
   }
 
   /**
-   * Posts to the correct thread to convert |textureBuffer| to I420.
+   * Posts to the correct thread to convert `textureBuffer` to I420.
    *
    * @deprecated Use toI420() instead.
    */