cc: Rework how picture layer tiling set gets into raster queues.

cc/resources/picture_layer_tiling_set.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/resources/picture_layer_tiling_set.h"
 
 #include <limits>
 #include <set>
 #include <vector>
 
@@ skipping 303 matching lines @@
   }
   return updated;
 }
 
 void PictureLayerTilingSet::GetAllTilesForTracing(
     std::set<const Tile*>* tiles) const {
   for (auto* tiling : tilings_)
     tiling->GetAllTilesForTracing(tiles);
 }
 
+bool PictureLayerTilingSet::HasValidTilePriorities() const {
+  return client()->HasValidTilePriorities();
+}
+
 PictureLayerTilingSet::CoverageIterator::CoverageIterator(
     const PictureLayerTilingSet* set,
     float contents_scale,
     const gfx::Rect& content_rect,
     float ideal_contents_scale)
     : set_(set),
       contents_scale_(contents_scale),
       ideal_contents_scale_(ideal_contents_scale),
       current_tiling_(-1) {
   missing_region_.Union(content_rect);
@@ skipping 202 matching lines @@
     case LOWER_THAN_LOW_RES:
       range = TilingRange(low_res_range.end, tilings_.size());
       break;
   }
 
   DCHECK_LE(range.start, range.end);
   return range;
 }
 
 }  // namespace cc