Remove unneeded abandon/release check in GrGpuResource message processing.

Change-Id: Ib11405be82e8ff7fd1edcaca2f19c44cce2abbd9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/257889
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/GrResourceCache.cpp b/src/gpu/GrResourceCache.cpp
index 6d9a961..5b0fafc 100644
--- a/src/gpu/GrResourceCache.cpp
+++ b/src/gpu/GrResourceCache.cpp
@@ -645,15 +645,13 @@
         SkASSERT(msgs[i].fOwningUniqueID == fContextUniqueID);
         uint32_t id = msgs[i].fTexture->uniqueID().asUInt();
         TextureAwaitingUnref* info = fTexturesAwaitingUnref.find(id);
-        // If we called release or abandon on the GrContext we will have already released our ref on
-        // the GrGpuResource. If then the message arrives before the actual GrContext gets destroyed
-        // we will try to process the message when we destroy the GrContext. This protects us from
-        // trying to unref the resource twice.
-        if (info) {
-            info->unref();
-            if (info->finished()) {
-                fTexturesAwaitingUnref.remove(id);
-            }
+        // If the GrContext was released or abandoned then fTexturesAwaitingUnref should have been
+        // empty and we would have returned early above. Thus, any texture from a message should be
+        // in the list of fTexturesAwaitingUnref.
+        SkASSERT(info);
+        info->unref();
+        if (info->finished()) {
+            fTexturesAwaitingUnref.remove(id);
         }
     }
 }