Fix bug in RenderLayer::scrollsWithRespectTo.

LayoutTests/compositing/overflow/scrolls-with-respect-to-expected.txt

Index: LayoutTests/compositing/overflow/scrolls-with-respect-to-expected.txt
diff --git a/LayoutTests/compositing/overflow/scrolls-with-respect-to-expected.txt b/LayoutTests/compositing/overflow/scrolls-with-respect-to-expected.txt
index 721cb1dd8e2f5d64ba89c126a0e89323e0408297..e705d72f2d4fce6378eced3fa66f72d98bf0c11f 100644
--- a/LayoutTests/compositing/overflow/scrolls-with-respect-to-expected.txt
+++ b/LayoutTests/compositing/overflow/scrolls-with-respect-to-expected.txt
@@ -9,6 +9,7 @@ predecessor scrolls with respect to scrolled3
 predecessor does not scroll with respect to fixed-descendant
 predecessor scrolls with respect to successor
 predecessor scrolls with respect to root
+predecessor scrolls with respect to descendant
 container scrolls with respect to predecessor
 container does not scroll with respect to container
 container scrolls with respect to scrolled1
@@ -17,6 +18,7 @@ container scrolls with respect to scrolled3
 container scrolls with respect to fixed-descendant
 container does not scroll with respect to successor
 container does not scroll with respect to root
+container scrolls with respect to descendant
 scrolled1 scrolls with respect to predecessor
 scrolled1 scrolls with respect to container
 scrolled1 does not scroll with respect to scrolled1
@@ -25,6 +27,7 @@ scrolled1 does not scroll with respect to scrolled3
 scrolled1 scrolls with respect to fixed-descendant
 scrolled1 scrolls with respect to successor
 scrolled1 scrolls with respect to root
+scrolled1 does not scroll with respect to descendant
 scrolled2 scrolls with respect to predecessor
 scrolled2 scrolls with respect to container
 scrolled2 does not scroll with respect to scrolled1
@@ -33,6 +36,7 @@ scrolled2 does not scroll with respect to scrolled3
 scrolled2 scrolls with respect to fixed-descendant
 scrolled2 scrolls with respect to successor
 scrolled2 scrolls with respect to root
+scrolled2 scrolls with respect to descendant
 scrolled3 scrolls with respect to predecessor
 scrolled3 scrolls with respect to container
 scrolled3 does not scroll with respect to scrolled1
@@ -41,6 +45,7 @@ scrolled3 does not scroll with respect to scrolled3
 scrolled3 scrolls with respect to fixed-descendant
 scrolled3 scrolls with respect to successor
 scrolled3 scrolls with respect to root
+scrolled3 scrolls with respect to descendant
 fixed-descendant does not scroll with respect to predecessor
 fixed-descendant scrolls with respect to container
 fixed-descendant scrolls with respect to scrolled1
@@ -49,6 +54,7 @@ fixed-descendant scrolls with respect to scrolled3
 fixed-descendant does not scroll with respect to fixed-descendant
 fixed-descendant scrolls with respect to successor
 fixed-descendant scrolls with respect to root
+fixed-descendant scrolls with respect to descendant
 successor scrolls with respect to predecessor
 successor does not scroll with respect to container
 successor scrolls with respect to scrolled1
@@ -57,6 +63,7 @@ successor scrolls with respect to scrolled3
 successor scrolls with respect to fixed-descendant
 successor does not scroll with respect to successor
 successor does not scroll with respect to root
+successor scrolls with respect to descendant
 root scrolls with respect to predecessor
 root does not scroll with respect to container
 root scrolls with respect to scrolled1
@@ -65,6 +72,16 @@ root scrolls with respect to scrolled3
 root scrolls with respect to fixed-descendant
 root does not scroll with respect to successor
 root does not scroll with respect to root
+root scrolls with respect to descendant
+descendant scrolls with respect to predecessor
+descendant scrolls with respect to container
+descendant does not scroll with respect to scrolled1
+descendant scrolls with respect to scrolled2
+descendant scrolls with respect to scrolled3
+descendant scrolls with respect to fixed-descendant
+descendant scrolls with respect to successor
+descendant scrolls with respect to root
+descendant does not scroll with respect to descendant
 iframe-div does not scroll with respect to iframe-div
 iframe-div does not scroll with respect to iframe-abs-div
 iframe-div scrolls with respect to iframe-fixed-div