Disable OneCopyCanvasCapture by default

This may be the cause of failures found on stable.

(cherry picked from commit 95981fa)

Bug: 1298812
Change-Id: I40ab3badd301b3445ded8983ca0fb39e1bdbcf0e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3473880
Reviewed-by: Fernando Serboncini <fserb@chromium.org>
Commit-Queue: ccameron chromium <ccameron@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#973810}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3506104
Cr-Commit-Position: refs/branch-heads/4896@{#339}
Cr-Branched-From: 1f63ff4-refs/heads/main@{#972766}

third_party/blink/renderer/core/html/canvas/html_canvas_element.cc

@@ -115,8 +115,15 @@ namespace {
 
 // This feature will only take effect if `kTwoCopyCanvasCapture` is also
 // enabled.
-const base::Feature kOneCopyCanvasCapture{"OneCopyCanvasCapture",
-                                          base::FEATURE_ENABLED_BY_DEFAULT};
+// TODO(https://crbug.com/1298812): Investigate why this fails on Windows.
+const base::Feature kOneCopyCanvasCapture {
+  "OneCopyCanvasCapture",
+#if BUILDFLAG(IS_MAC)
+      base::FEATURE_ENABLED_BY_DEFAULT
+#else
+      base::FEATURE_DISABLED_BY_DEFAULT
+#endif
+};
 
 const base::Feature kTwoCopyCanvasCapture {
   "TwoCopyCanvasCapture",