c:: Give the raster source to the PictureLayerTilings.

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 36 matching lines @@
       skewport_target_time_in_seconds_(skewport_target_time_in_seconds),
       skewport_extrapolation_limit_in_content_pixels_(
           skewport_extrapolation_limit_in_content_pixels),
       client_(client) {
 }
 
 PictureLayerTilingSet::~PictureLayerTilingSet() {
 }
 
 void PictureLayerTilingSet::UpdateTilingsToCurrentRasterSource(
-    RasterSource* raster_source,
+    scoped_refptr<RasterSource> raster_source,
     const PictureLayerTilingSet* twin_set,
     const Region& layer_invalidation,
     float minimum_contents_scale,
     float maximum_contents_scale) {
   RemoveTilingsBelowScale(minimum_contents_scale);
   RemoveTilingsAboveScale(maximum_contents_scale);
 
-  gfx::Size layer_bounds = raster_source->GetSize();
-
   // Copy over tilings that are shared with the |twin_set| tiling set (if it
   // exists).
   if (twin_set) {
     for (PictureLayerTiling* twin_tiling : twin_set->tilings_) {
       float contents_scale = twin_tiling->contents_scale();
       DCHECK_GE(contents_scale, minimum_contents_scale);
       DCHECK_LE(contents_scale, maximum_contents_scale);
 
       PictureLayerTiling* this_tiling = FindTilingWithScale(contents_scale);
       if (!this_tiling) {
         scoped_ptr<PictureLayerTiling> new_tiling = PictureLayerTiling::Create(
-            contents_scale, layer_bounds, client_, max_tiles_for_interest_area_,
-            skewport_target_time_in_seconds_,
+            contents_scale, raster_source, client_,
+            max_tiles_for_interest_area_, skewport_target_time_in_seconds_,
             skewport_extrapolation_limit_in_content_pixels_);
         tilings_.push_back(new_tiling.Pass());
         this_tiling = tilings_.back();
       }
       this_tiling->CloneTilesAndPropertiesFrom(*twin_tiling);
     }
   }
 
   // For unshared tilings, invalidate tiles and update them to the new raster
   // source.
   for (PictureLayerTiling* tiling : tilings_) {
     if (twin_set && twin_set->FindTilingWithScale(tiling->contents_scale()))
       continue;
 
-    tiling->Resize(layer_bounds);
+    tiling->SetRasterSourceAndResize(raster_source);
     tiling->Invalidate(layer_invalidation);
-    tiling->SetRasterSource(raster_source);
+    tiling->SetRasterSourceOnTiles();
     // This is needed for cases where the live tiles rect didn't change but
     // recordings exist in the raster source that did not exist on the last
     // raster source.
     tiling->CreateMissingTilesInLiveTilesRect();
 
     // If |twin_set| is present, use the resolutions from there. Otherwise leave
     // all resolutions as they are.
     if (twin_set)
       tiling->set_resolution(NON_IDEAL_RESOLUTION);
   }
@@ skipping 85 matching lines @@
   tilings_.erase(to_remove, tilings_.end());
 }
 
 void PictureLayerTilingSet::MarkAllTilingsNonIdeal() {
   for (auto* tiling : tilings_)
     tiling->set_resolution(NON_IDEAL_RESOLUTION);
 }
 
 PictureLayerTiling* PictureLayerTilingSet::AddTiling(
     float contents_scale,
-    const gfx::Size& layer_bounds) {
-  for (size_t i = 0; i < tilings_.size(); ++i)
+    scoped_refptr<RasterSource> raster_source) {
+  for (size_t i = 0; i < tilings_.size(); ++i) {
     DCHECK_NE(tilings_[i]->contents_scale(), contents_scale);
+    DCHECK_EQ(tilings_[i]->raster_source(), raster_source.get());
+  }
 
   tilings_.push_back(PictureLayerTiling::Create(
-      contents_scale, layer_bounds, client_, max_tiles_for_interest_area_,
+      contents_scale, raster_source, client_, max_tiles_for_interest_area_,
       skewport_target_time_in_seconds_,
       skewport_extrapolation_limit_in_content_pixels_));
   PictureLayerTiling* appended = tilings_.back();
 
   tilings_.sort(LargestToSmallestScaleFunctor());
   return appended;
 }
 
 int PictureLayerTilingSet::NumHighResTilings() const {
   int num_high_res = 0;
@@ skipping 324 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