Mark virtual/syncpaint/inspector/tracing/decode-resize.html as flaky on XP
Mark virtual/syncpaint/inspector/tracing/decode-resize.html as flaky on XP

BUG=535478
TBR=caseq
NOTRY=true

Review URL: https://codereview.chromium.org/1459593003

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#360440}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk