Mark structured-clone test as Slow, not Timeout

Per discussion in https://codereview.chromium.org/2465483002 a more
appropriate expectation for this test is [Slow], not [Timeout].

BUG=660492
[email protected]
NOTRY=true

Review-Url: https://codereview.chromium.org/2474273002
Cr-Commit-Position: refs/heads/master@{#429730}
diff --git a/third_party/WebKit/LayoutTests/SlowTests b/third_party/WebKit/LayoutTests/SlowTests
index b33512f..f7191b407 100644
--- a/third_party/WebKit/LayoutTests/SlowTests
+++ b/third_party/WebKit/LayoutTests/SlowTests
@@ -350,3 +350,5 @@
 # IndexedDB, which can be slow.
 crbug.com/660468 [ Linux ] storage/indexeddb/observer-frame.html [ Slow ]
 crbug.com/660468 [ Linux ] storage/indexeddb/observer-workers.html [ Slow ]
+
+crbug.com/660492 [ Linux ] storage/indexeddb/structured-clone.html [ Slow ]
diff --git a/third_party/WebKit/LayoutTests/TestExpectations b/third_party/WebKit/LayoutTests/TestExpectations
index aa1e707..79b1801 100644
--- a/third_party/WebKit/LayoutTests/TestExpectations
+++ b/third_party/WebKit/LayoutTests/TestExpectations
@@ -531,8 +531,6 @@
 crbug.com/410145 [ Win ] fast/table/column-in-inline.html [ Failure ]
 crbug.com/411164 [ Win ] http/tests/security/powerfulFeatureRestrictions/serviceworker-on-insecure-origin.html [ Pass ]
 
-crbug.com/660492 [ Linux ] storage/indexeddb/structured-clone.html [ Timeout ]
-
 # Diff of -expected.txt is too large to upload.
 Bug(tkent) imported/wpt/html/dom/reflection-embedded.html [ NeedsManualRebaseline ]
 Bug(tkent) imported/wpt/html/dom/reflection-forms.html [ NeedsManualRebaseline ]
@@ -1553,4 +1551,3 @@
 crbug.com/657646 [ Win ] fast/text/drawBidiText.html [ Failure Pass ]
 crbug.com/657646 [ Win ] fast/text/font-features/caps-native-synthesis.html [ Failure Pass ]
 crbug.com/657646 [ Win ] fast/text/international/thai-line-breaks.html [ Failure Pass ]
-