Only allow reprojecting shadows between ShadowRoots of the same type

LayoutTests/TestExpectations

Index: LayoutTests/TestExpectations
diff --git a/LayoutTests/TestExpectations b/LayoutTests/TestExpectations
index a6206e6bdbc02679c965db231289dd4c9d522247..0a49514288fdf3e79df6f14434ec0352b5c44259 100644
--- a/LayoutTests/TestExpectations
+++ b/LayoutTests/TestExpectations
@@ -651,15 +651,6 @@ webkit.org/b/87175 [ Win Linux ] fast/regions/overflow-in-uniform-regions.html [
 # See http://crbug.com/244285 for the crash instance.
 webkit.org/b/87321 fast/history/history-subframe-with-name.html [ Failure Pass Timeout Crash ]
 
-# Shadow DOM for replaced elements is not rendered correctly yet.
-webkit.org/b/90860 fast/dom/shadow/shadowdom-for-object-complex-shadow.html [ ImageOnlyFailure ]
-webkit.org/b/90860 fast/dom/shadow/shadowdom-for-object-without-shadow.html [ ImageOnlyFailure ]
-webkit.org/b/91487 fast/dom/shadow/shadowdom-for-select-complex-shadow.html [ ImageOnlyFailure ]
-webkit.org/b/91487 fast/dom/shadow/shadowdom-for-select-without-shadow.html [ ImageOnlyFailure ]
-webkit.org/b/91488 fast/dom/shadow/shadowdom-for-output-only-shadow.html [ ImageOnlyFailure ]
-webkit.org/b/91489 fast/dom/shadow/shadowdom-for-fieldset-complex-shadow.html [ ImageOnlyFailure ]
-webkit.org/b/91489 fast/dom/shadow/shadowdom-for-fieldset-only-shadow.html [ ImageOnlyFailure ]
-
 # a:enabled and area:enabled are not correctly implemented yet.
 webkit.org/b/102349 fast/dom/shadow/pseudoclass-update-enabled-anchor.html [ ImageOnlyFailure ]
 webkit.org/b/102349 fast/dom/shadow/pseudoclass-update-enabled-area.html [ ImageOnlyFailure ]
@@ -712,8 +703,6 @@ crbug.com/240374 compositing/overlap-blending/children-opacity-huge.html [ Image
 crbug.com/240374 compositing/overlap-blending/children-opacity-no-overlap.html [ ImageOnlyFailure ]
 crbug.com/240374 virtual/softwarecompositing/overlap-blending/preserves3d-opacity.html [ ImageOnlyFailure ]
 
-webkit.org/b/95588 [ Mac ] fast/dom/shadow/shadowdom-for-textarea-complex-shadow.html [ ImageOnlyFailure ]
-
 # Failing due to sub-pixel layout.
 webkit.org/b/95136 fast/css/sticky/sticky-left-percentage.html [ ImageOnlyFailure ]
 webkit.org/b/95136 [ Linux Win ] fast/css/sticky/sticky-writing-mode-vertical-lr.html [ ImageOnlyFailure ]