Enable tests that were disabled for crbug.com/1064341

We have fixed crbug.com/1064341.

TBR=pdr@chromium.org

Bug: 1064341
Change-Id: I0d156a40c590c5b2bd5dbd01a6a9bf2f4e3d50e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2134203Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#755963}

third_party/blink/renderer/core/paint/paint_property_tree_builder_test.cc

@@ -4323,10 +4323,6 @@ TEST_P(PaintPropertyTreeBuilderTest, LayerUnderOverflowClipUnderMultiColumn) {
 }
 
 TEST_P(PaintPropertyTreeBuilderTest, CompositedUnderMultiColumn) {
-  // TODO(crbug.com/1064341): This test crashes in CompositeAfterPaint. Fix it.
-  if (RuntimeEnabledFeatures::CompositeAfterPaintEnabled())
-    return;
-
   SetBodyInnerHTML(R"HTML(
     <style>body { margin: 0; }</style>
     <div id='multicol' style='columns:3; column-fill:auto; column-gap: 0;
@@ -4475,10 +4471,6 @@ TEST_P(PaintPropertyTreeBuilderTest, FrameUnderMulticol) {
 }
 
 TEST_P(PaintPropertyTreeBuilderTest, CompositedMulticolFrameUnderMulticol) {
-  // TODO(crbug.com/1064341): This test crashes in CompositeAfterPaint. Fix it.
-  if (RuntimeEnabledFeatures::CompositeAfterPaintEnabled())
-    return;
-
   SetBodyInnerHTML(R"HTML(
     <style>body { margin: 0 }</style>
     <div style='columns: 3; column-gap: 0; column-fill: auto;
@@ -5627,10 +5619,6 @@ TEST_P(PaintPropertyTreeBuilderTest, CompositedLayerSkipsFragmentClip) {
 }
 
 TEST_P(PaintPropertyTreeBuilderTest, CompositedLayerUnderClipUnderMulticol) {
-  // TODO(crbug.com/1064341): This test crashes in CompositeAfterPaint. Fix it.
-  if (RuntimeEnabledFeatures::CompositeAfterPaintEnabled())
-    return;
-
   SetBodyInnerHTML(R"HTML(
     <div id="multicol" style="columns: 2">
       <div id="clip" style="height: 100px; overflow: hidden">