[LayoutNG] Set flexbox's intrinsic block size

I didn't realize it was already calculated, it just needed to be passed
to the fragment builder.

Bug: 845235
Change-Id: I6ac97cd9326b545a395677e3ae03d09a7f341def
Reviewed-on: https://chromium-review.googlesource.com/c/1479816Reviewed-by: Christian Biesinger <cbiesinger@chromium.org>
Commit-Queue: David Grogan <dgrogan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#634508}

third_party/blink/renderer/core/layout/ng/ng_flex_layout_algorithm.cc

@@ -274,6 +274,7 @@ scoped_refptr<const NGLayoutResult> NGFlexLayoutAlgorithm::Layout() {
   container_builder_.SetInlineSize(border_box_size_.inline_size);
   container_builder_.SetBorders(borders_);
   container_builder_.SetPadding(padding_);
+  container_builder_.SetIntrinsicBlockSize(intrinsic_block_size);
 
   GiveLinesAndItemsFinalPositionAndSize();
 

third_party/blink/web_tests/TestExpectations

@@ -1553,7 +1553,6 @@ crbug.com/591099 virtual/layout_ng_experimental/css3/flexbox/negative-overflow.h
 crbug.com/591099 virtual/layout_ng_experimental/css3/flexbox/nested-stretch.html [ Failure ]
 crbug.com/591099 virtual/layout_ng_experimental/css3/flexbox/order-painting.html [ Failure ]
 crbug.com/591099 virtual/layout_ng_experimental/css3/flexbox/orthogonal-writing-modes-and-intrinsic-sizing.html [ Failure ]
-crbug.com/591099 virtual/layout_ng_experimental/css3/flexbox/overflow-and-padding.html [ Failure ]
 crbug.com/591099 virtual/layout_ng_experimental/css3/flexbox/overflow-auto-resizes-correctly.html [ Failure ]
 crbug.com/591099 virtual/layout_ng_experimental/css3/flexbox/overflow-keep-scrollpos.html [ Failure ]
 crbug.com/591099 virtual/layout_ng_experimental/css3/flexbox/percentage-height-replaced-element.html [ Failure ]