Rebase paint/invalidation/selection/selection-rl.html

For LegacyLayout, we have to do character-range-based partial invalidation for selections
because a LayoutText is too big to be fully invalidates for selection.
In the other hand, we're invalidating each NGPaintfragment. So no further grain invalidation,
which is based on character range that we're doing for legacy, is not needed.

Bug: 708452
Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng
Change-Id: Id011ced00ee2de43efdc9bf35f7ad922b0cf1078
Reviewed-on: https://chromium-review.googlesource.com/1198744Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#587946}

third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG

@@ -488,7 +488,6 @@ crbug.com/591099 paint/invalidation/position/intermediate-layout-position.html [
 crbug.com/714962 paint/invalidation/position/relative-positioned-movement-repaint.html [ Failure ]
 crbug.com/591099 paint/invalidation/position/relayout-fixed-position-after-scale.html [ Failure ]
 crbug.com/591099 paint/invalidation/scroll/repaint-composited-child-in-scrolled-container.html [ Failure ]
-crbug.com/591099 paint/invalidation/selection/selection-rl.html [ Failure ]
 crbug.com/591099 paint/invalidation/svg/animated-path-inside-transformed-html.xhtml [ Failure Pass ]
 crbug.com/591099 paint/invalidation/svg/resize-svg-invalidate-children.html [ Failure ]
 crbug.com/591099 paint/invalidation/svg/svg-background-partial-redraw.html [ Failure ]

third_party/WebKit/LayoutTests/flag-specific/enable-blink-features=LayoutNG/paint/invalidation/selection/selection-rl-expected.txt

+{
+  "layers": [
+    {
+      "name": "LayoutView #document",
+      "bounds": [800, 600],
+      "drawsContent": false,
+      "backgroundColor": "#FFFFFF"
+    },
+    {
+      "name": "Scrolling Layer",
+      "bounds": [800, 600],
+      "drawsContent": false
+    },
+    {
+      "name": "Scrolling Contents Layer",
+      "bounds": [800, 600],
+      "contentsOpaque": true,
+      "backgroundColor": "#FFFFFF",
+      "paintInvalidations": [
+        {
+          "object": "NGPhysicalTextFragment 'Testing both hit testing'",
+          "rect": [772, 8, 20, 143],
+          "reason": "selection"
+        }
+      ]
+    }
+  ]
+}
+