Moved webgl-profiler-api-changes to SLOW category.

Review URL: https://codereview.chromium.org/393223003

BUG=394210

Review URL: https://codereview.chromium.org/393223003

git-svn-id: svn://svn.chromium.org/blink/trunk@179153 bbb929c8-8fbe-4397-9dbb-9b2b20218538
diff --git a/third_party/WebKit/LayoutTests/SlowTests b/third_party/WebKit/LayoutTests/SlowTests
index 8017ab7..f32eb16 100644
--- a/third_party/WebKit/LayoutTests/SlowTests
+++ b/third_party/WebKit/LayoutTests/SlowTests
@@ -96,6 +96,7 @@
 crbug.com/327078 http/tests/inspector/network/long-script-content.html [ Slow ]
 crbug.com/247466 [ Debug ] inspector-enabled/sources/debugger/script-formatter-breakpoints-1.html [ Slow ]
 crbug.com/247466 [ Debug ] inspector-enabled/sources/debugger/script-formatter-breakpoints-4.html [ Slow ]
+crbug.com/394210 [ Release ] inspector/profiler/webgl/webgl-profiler-api-changes.html [ Slow ]
 # inspector tests below are slow on LinuxASAN
 crbug.com/247466 [ Linux Release ] inspector/sources/debugger/debugger-activation-crash2.html [ Slow ]