cc: Remove the base RasterSource

cc/layers/picture_layer_impl.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/layers/picture_layer_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 #include <set>
@@ skipping 506 matching lines @@
       visible_rect_in_content_space;
 }
 
 PictureLayerImpl* PictureLayerImpl::GetPendingOrActiveTwinLayer() const {
   if (!twin_layer_ || !twin_layer_->IsOnActiveOrPendingTree())
     return nullptr;
   return twin_layer_;
 }
 
 void PictureLayerImpl::UpdateRasterSource(
-    scoped_refptr<RasterSource> raster_source,
+    scoped_refptr<DisplayListRasterSource> raster_source,
     Region* new_invalidation,
     const PictureLayerTilingSet* pending_set) {
   // The bounds and the pile size may differ if the pile wasn't updated (ie.
   // PictureLayer::Update didn't happen). In that case the pile will be empty.
   DCHECK_IMPLIES(!raster_source->GetSize().IsEmpty(),
                  bounds() == raster_source->GetSize())
       << " bounds " << bounds().ToString() << " pile "
       << raster_source->GetSize().ToString();
 
   // The |raster_source_| is initially null, so have to check for that for the
@@ skipping 41 matching lines @@
   DCHECK(layer_tree_impl()->IsSyncTree());
 
   // Don't allow the LCD text state to change once disabled.
   if (!RasterSourceUsesLCDText())
     return;
   if (can_use_lcd_text() == RasterSourceUsesLCDText())
     return;
 
   // Raster sources are considered const, so in order to update the state
   // a new one must be created and all tiles recreated.
-  scoped_refptr<RasterSource> new_raster_source =
+  scoped_refptr<DisplayListRasterSource> new_raster_source =
       raster_source_->CreateCloneWithoutLCDText();
   raster_source_.swap(new_raster_source);
 
   // Synthetically invalidate everything.
   gfx::Rect bounds_rect(bounds());
   invalidation_ = Region(bounds_rect);
   tilings_->UpdateRasterSourceDueToLCDChange(raster_source_, invalidation_);
   SetUpdateRect(bounds_rect);
 
   DCHECK(!RasterSourceUsesLCDText());
@@ skipping 663 matching lines @@
 
 bool PictureLayerImpl::IsOnActiveOrPendingTree() const {
   return !layer_tree_impl()->IsRecycleTree();
 }
 
 bool PictureLayerImpl::HasValidTilePriorities() const {
   return IsOnActiveOrPendingTree() && IsDrawnRenderSurfaceLayerListMember();
 }
 
 }  // namespace cc