Fix the path in skia/skia_test_expectations.txt

It makes presubmit error:
The test file path has been changed by the following CL.
- https://codereview.chromium.org/477153005

TBR=mtklein@chromium.org,caryclark@google.com,fmalita@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=none

Review URL: https://codereview.chromium.org/497403002

Cr-Commit-Position: refs/heads/master@{#291623}

skia/skia_test_expectations.txt

@@ -49,6 +49,6 @@
 # START OVERRIDES HERE
 
 # Suppressed while we investigate a fix.
-crbug.com/406425 virtual/implsidepainting/inspector/timeline/tracing/paint-command-log-nodes.html [ Failure Pass ]
+crbug.com/406425 virtual/implsidepainting/inspector/tracing/paint-command-log-nodes.html [ Failure Pass ]
 
 # END OVERRIDES HERE (this line ensures that the file is newline-terminated)