diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
index a87a2c89136..b5d252d4330 100644
--- a/LayoutTests/ChangeLog
+++ b/LayoutTests/ChangeLog
@@ -1,3 +1,11 @@
+2012-05-03  Zhenyao Mo  <zmo@google.com>
+
+        Unreviewed, rebaseline.
+
+        * platform/chromium-win-vista/fast/css/zoom-body-scroll-expected.txt: Added.
+        * platform/chromium-win-xp/fast/css/zoom-body-scroll-expected.txt: Added.
+        * platform/chromium-win/fast/css/zoom-body-scroll-expected.txt:
+
 2012-05-03  Levi Weintraub  <leviw@chromium.org>
 
         Updating expectations after r116009.
diff --git a/LayoutTests/platform/chromium-win-vista/fast/css/zoom-body-scroll-expected.txt b/LayoutTests/platform/chromium-win-vista/fast/css/zoom-body-scroll-expected.txt
new file mode 100644
index 00000000000..7403b56a480
--- /dev/null
+++ b/LayoutTests/platform/chromium-win-vista/fast/css/zoom-body-scroll-expected.txt
@@ -0,0 +1,21 @@
+Test for rdar://problem/6643103 Unscaled values from body.scrollHeight.
+
+scrollHeight: 1000
+scrollWidth: 1000
+
+Scrolling right to 50
+scrollLeft: 50
+
+Zooming in
+scrollHeight: 1000
+scrollWidth: 1000
+scrollTop: 0
+scrollLeft: 50
+
+Scrolling down to 100
+scrollTop: 100
+
+Zooming back out
+scrollTop: 100
+scrollLeft: 50
+
diff --git a/LayoutTests/platform/chromium-win-xp/fast/css/zoom-body-scroll-expected.txt b/LayoutTests/platform/chromium-win-xp/fast/css/zoom-body-scroll-expected.txt
new file mode 100644
index 00000000000..7403b56a480
--- /dev/null
+++ b/LayoutTests/platform/chromium-win-xp/fast/css/zoom-body-scroll-expected.txt
@@ -0,0 +1,21 @@
+Test for rdar://problem/6643103 Unscaled values from body.scrollHeight.
+
+scrollHeight: 1000
+scrollWidth: 1000
+
+Scrolling right to 50
+scrollLeft: 50
+
+Zooming in
+scrollHeight: 1000
+scrollWidth: 1000
+scrollTop: 0
+scrollLeft: 50
+
+Scrolling down to 100
+scrollTop: 100
+
+Zooming back out
+scrollTop: 100
+scrollLeft: 50
+
diff --git a/LayoutTests/platform/chromium-win/fast/css/zoom-body-scroll-expected.txt b/LayoutTests/platform/chromium-win/fast/css/zoom-body-scroll-expected.txt
index 7ac0fe96fd0..7403b56a480 100644
--- a/LayoutTests/platform/chromium-win/fast/css/zoom-body-scroll-expected.txt
+++ b/LayoutTests/platform/chromium-win/fast/css/zoom-body-scroll-expected.txt
@@ -16,6 +16,6 @@ Scrolling down to 100
 scrollTop: 100
 
 Zooming back out
-scrollTop: 99
-scrollLeft: 49
+scrollTop: 100
+scrollLeft: 50