[auto] Update FlagExpectations for LayoutNG

Following bot results are included.
4497 4499 4505 4509 4513 4516 4521 4524 4526

8 lines were removed and 9 lines were deflaked by consecutive
results since 4466.

Following test was converted to testharness and that text dump was
removed:
  editing/selection/extend-by-sentence-001.html

TBR=eae@chromium.org, mstensho@chromium.org
NOTRY=true

Bug: 591099
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_layout_tests_layout_ng
Change-Id: I3541c45d6961f8ad9cc08f9ea095c64f66c56e0a
Reviewed-on: https://chromium-review.googlesource.com/989520
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#547626}

third_party/WebKit/LayoutTests/flag-specific/enable-blink-features=LayoutNG/editing/selection/extend-by-sentence-001-expected.txt

-EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-layer at (0,0) size 800x600
-  LayoutView at (0,0) size 800x600
-layer at (0,0) size 800x600
-  LayoutNGBlockFlow {HTML} at (0,0) size 800x600
-    LayoutNGBlockFlow {BODY} at (8,8) size 784x584
-      LayoutBlockFlow {DIV} at (0,0) size 784x84 [border: (2px solid #FF0000)]
-        LayoutBlockFlow {FRIJOLE} at (14,14) size 756x56
-          LayoutNGBlockFlow (anonymous) at (0,0) size 741x28
-            LayoutText {#text} at (0,0) size 132x27
-              text run at (0,0) width 132: "one two three"
-            LayoutInline {FRIJOLE} at (0,0) size 0x27
-              LayoutText {#text} at (0,0) size 0x0
-          LayoutNGBlockFlow (anonymous) at (0,28) size 741x28
-            LayoutBlockFlow {DOODAD} at (0,0) size 741x28
-              LayoutText {#text} at (0,0) size 118x27
-                text run at (0,0) width 118: "four five six"
-          LayoutNGBlockFlow (anonymous) at (0,56) size 741x0
-            LayoutInline {FRIJOLE} at (0,0) size 0x0
-selection start: position 0 of child 0 {#text} of child 1 {DOODAD} of child 1 {FRIJOLE} of child 1 {FRIJOLE} of child 1 {DIV} of body
-selection end:   position 13 of child 0 {#text} of child 1 {DOODAD} of child 1 {FRIJOLE} of child 1 {FRIJOLE} of child 1 {DIV} of body