cc: Remove GetRasterSource from PictureLayerTilingClient.

cc/resources/picture_layer_tiling_set.cc

Index: cc/resources/picture_layer_tiling_set.cc
diff --git a/cc/resources/picture_layer_tiling_set.cc b/cc/resources/picture_layer_tiling_set.cc
index a0000b6e697450deedc814bef8c21920c400a99a..d523dee3d76ede35c11a083823b4d633c8100edc 100644
--- a/cc/resources/picture_layer_tiling_set.cc
+++ b/cc/resources/picture_layer_tiling_set.cc
@@ -19,8 +19,16 @@ class LargestToSmallestScaleFunctor {
 
 }  // namespace
 
-PictureLayerTilingSet::PictureLayerTilingSet(PictureLayerTilingClient* client)
-    : client_(client) {
+// static
+scoped_ptr<PictureLayerTilingSet> PictureLayerTilingSet::Create(
+    PictureLayerTilingClient* client,
+    RasterSource* raster_source) {
+  return make_scoped_ptr(new PictureLayerTilingSet(client, raster_source));
+}
+
+PictureLayerTilingSet::PictureLayerTilingSet(PictureLayerTilingClient* client,
+                                             RasterSource* raster_source)
+    : client_(client), raster_source_(raster_source) {
 }
 
 PictureLayerTilingSet::~PictureLayerTilingSet() {
@@ -32,6 +40,10 @@ void PictureLayerTilingSet::SetClient(PictureLayerTilingClient* client) {
     tilings_[i]->SetClient(client_);
 }
 
+void PictureLayerTilingSet::SetRasterSource(RasterSource* raster_source) {
+  raster_source_ = raster_source;
+}
+
 void PictureLayerTilingSet::RemoveTilesInRegion(const Region& region) {
   for (size_t i = 0; i < tilings_.size(); ++i)
     tilings_[i]->RemoveTilesInRegion(region);
@@ -59,6 +71,7 @@ bool PictureLayerTilingSet::SyncTilings(const PictureLayerTilingSet& other,
     --i;
   }
 
+  DCHECK(raster_source_);
   bool have_high_res_tiling = false;
 
   // Add any missing tilings from |other| that meet the minimum.
@@ -69,8 +82,8 @@ bool PictureLayerTilingSet::SyncTilings(const PictureLayerTilingSet& other,
     if (PictureLayerTiling* this_tiling = TilingAtScale(contents_scale)) {
       this_tiling->set_resolution(other.tilings_[i]->resolution());
 
-      this_tiling->UpdateTilesToCurrentRasterSource(layer_invalidation,
-                                                    new_layer_bounds);
+      this_tiling->UpdateTilesToCurrentRasterSource(
+          raster_source_, layer_invalidation, new_layer_bounds);
       this_tiling->CreateMissingTilesInLiveTilesRect();
       if (this_tiling->resolution() == HIGH_RESOLUTION)
         have_high_res_tiling = true;