Remove resourceless_software_draw() and related unit tests.

WebView passes the correct viewport and transform for tile
priority in both hardware and resourceless software draws. As
a result, PictureLayerImpl does not need to treat
resourceless software draws differently.

BUG=398587

Review URL: https://codereview.chromium.org/517893002

Cr-Commit-Position: refs/heads/master@{#292723}

1 files changed, 4 insertions, 8 deletions

diff --git a/cc/layers/picture_layer_impl.cc b/cc/layers/picture_layer_impl.cc
index cb6aab3..1f8e5a8 100644
--- a/cc/layers/picture_layer_impl.cc
+++ b/cc/layers/picture_layer_impl.cc
@@ -433,14 +433,10 @@ void PictureLayerImpl::UpdateTiles(
   DCHECK(!occlusion_tracker ||
          layer_tree_impl()->settings().use_occlusion_for_tile_prioritization);
 
-  // Transforms and viewport are invalid for tile management inside a
-  // resourceless software draw, so don't update them.
-  if (!layer_tree_impl()->resourceless_software_draw()) {
-    visible_rect_for_tile_priority_ = visible_content_rect();
-    viewport_rect_for_tile_priority_ =
-        layer_tree_impl()->ViewportRectForTilePriority();
-    screen_space_transform_for_tile_priority_ = screen_space_transform();
-  }
+  visible_rect_for_tile_priority_ = visible_content_rect();
+  viewport_rect_for_tile_priority_ =
+      layer_tree_impl()->ViewportRectForTilePriority();
+  screen_space_transform_for_tile_priority_ = screen_space_transform();
 
   if (!CanHaveTilings()) {
     ideal_page_scale_ = 0.f;