diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
index d3ef8886cb00..2f3ec2959b3a 100644
--- a/LayoutTests/ChangeLog
+++ b/LayoutTests/ChangeLog
@@ -1,3 +1,15 @@
+2012-08-17  Zan Dobersek  <zandobersek@gmail.com>
+
+        Unreviewed GTK gardening.
+
+        Narrowing the failure expectation for http/tests/xmlhttprequest/origin-exact-matching.html.
+        The test now constantly fails only on release builds.
+
+        Adding a new baseline for a subpixel test that's required after r125794.
+
+        * platform/gtk/TestExpectations:
+        * platform/gtk/fast/sub-pixel/sub-pixel-accumulates-to-layers-expected.txt: Added.
+
 2012-08-17  Anna Cavender <annacc@chromium.org>
 
         [Chromium] Removing track-active-cues.html from TextExpectations, passing now.
diff --git a/LayoutTests/platform/gtk/TestExpectations b/LayoutTests/platform/gtk/TestExpectations
index f9aea217a0a8..3cd595f7e2b3 100644
--- a/LayoutTests/platform/gtk/TestExpectations
+++ b/LayoutTests/platform/gtk/TestExpectations
@@ -577,9 +577,6 @@ BUGWK89099 : svg/transforms/transformed-text-fill-pattern.html = PASS IMAGE
 // Fails on 32-bit release and 64-bit debug builders
 BUGWK83560 : fast/events/drop-with-file-paths.html = PASS TEXT
 
-// Fails on 32-bit release and 64-bit release builders
-BUGWK88727 : http/tests/xmlhttprequest/origin-exact-matching.html = PASS TEXT
-
 //////////////////////////////////////////////////////////////////////////////////////////
 // End of tests with architecture-specific results
 //////////////////////////////////////////////////////////////////////////////////////////
@@ -1321,6 +1318,8 @@ BUGWK80129 : fast/frames/flattening/frameset-flattening-advanced.html = TEXT
 
 BUGWK89663 : editing/deleting/delete-3800834-fix.html = TEXT
 
+BUGWK88727 RELEASE : http/tests/xmlhttprequest/origin-exact-matching.html = TEXT
+
 //////////////////////////////////////////////////////////////////////////////////////////
 // End of Tests failing
 //////////////////////////////////////////////////////////////////////////////////////////
diff --git a/LayoutTests/platform/gtk/fast/sub-pixel/sub-pixel-accumulates-to-layers-expected.txt b/LayoutTests/platform/gtk/fast/sub-pixel/sub-pixel-accumulates-to-layers-expected.txt
new file mode 100644
index 000000000000..5a116a3d241e
--- /dev/null
+++ b/LayoutTests/platform/gtk/fast/sub-pixel/sub-pixel-accumulates-to-layers-expected.txt
@@ -0,0 +1,12 @@
+layer at (0,0) size 32000x585
+  RenderView at (0,0) size 800x585
+layer at (0,0) size 800x0
+  RenderBlock {HTML} at (0,0) size 800x0
+layer at (0,0) size 14x14
+  RenderBlock (positioned) {DIV} at (0,0) size 14x14
+layer at (7,0) size 1x7
+  RenderBlock (positioned) {DIV} at (7,0) size 1x7 [bgcolor=#FF0000]
+layer at (0,0) size 14x14
+  RenderBlock (positioned) {DIV} at (0,0) size 14x14
+layer at (7,0) size 1x7
+  RenderBlock (positioned) {DIV} at (7,0) size 1x7 [bgcolor=#008000]