Fix post-GrFence removal comments.

Noticed some of these after submitting the removal CL.

Change-Id: I94b67fb1b76082b33a03e491bffb1d5eab934f4c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/803019
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/ganesh/gl/GrGLCaps.cpp b/src/gpu/ganesh/gl/GrGLCaps.cpp
index 20a19d3..45dd84b 100644
--- a/src/gpu/ganesh/gl/GrGLCaps.cpp
+++ b/src/gpu/ganesh/gl/GrGLCaps.cpp
@@ -758,7 +758,7 @@
     // GrGLsync objects ahead of time without talking to the GPU.
     fBackendSemaphoreSupport = false;
     // We prefer GL sync objects but also support NV_fence_sync. The former can be
-    // used to implement GrGLFence and GrSemaphore. The latter only implements GrGLFence.
+    // used to implement GrGLsync and GrSemaphore. The latter only implements GrGLsync.
     // TODO: support CHROMIUM_sync_point and maybe KHR_fence_sync
     if (GR_IS_GR_WEBGL(standard)) {
         // Only in WebGL 2.0
diff --git a/src/gpu/ganesh/gl/GrGLCaps.h b/src/gpu/ganesh/gl/GrGLCaps.h
index 12257fb..1622771 100644
--- a/src/gpu/ganesh/gl/GrGLCaps.h
+++ b/src/gpu/ganesh/gl/GrGLCaps.h
@@ -331,7 +331,7 @@
     /** Supports using GrGLsync. */
     bool fenceSyncSupport() const { return fFenceSyncSupport; }
 
-    /// How are GrFences implemented?
+    /// How is GrGLsync implemented?
     FenceType fenceType() const { return fFenceType; }
 
     /// How are multi draws implemented (if at all)?