cc: Remove use of PassAs() and constructor-casting with scoped_ptr.

cc/layers/tiled_layer.cc

 // Copyright 2011 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/tiled_layer.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/auto_reset.h"
@@ skipping 80 matching lines @@
       skips_draw_(false),
       failed_update_(false),
       tiling_option_(AUTO_TILE) {
   tiler_ =
       LayerTilingData::Create(gfx::Size(), LayerTilingData::HAS_BORDER_TEXELS);
 }
 
 TiledLayer::~TiledLayer() {}
 
 scoped_ptr<LayerImpl> TiledLayer::CreateLayerImpl(LayerTreeImpl* tree_impl) {
-  return TiledLayerImpl::Create(tree_impl, id()).PassAs<LayerImpl>();
+  return TiledLayerImpl::Create(tree_impl, id());
 }
 
 void TiledLayer::UpdateTileSizeAndTilingOption() {
   DCHECK(layer_tree_host());
 
   gfx::Size default_tile_size = layer_tree_host()->settings().default_tile_size;
   gfx::Size max_untiled_layer_size =
       layer_tree_host()->settings().max_untiled_layer_size;
   int layer_width = content_bounds().width();
   int layer_height = content_bounds().height();
@@ skipping 158 matching lines @@
 }
 
 UpdatableTile* TiledLayer::CreateTile(int i, int j) {
   CreateUpdaterIfNeeded();
 
   scoped_ptr<UpdatableTile> tile(
       UpdatableTile::Create(Updater()->CreateResource(ResourceManager())));
   tile->managed_resource()->SetDimensions(tiler_->tile_size(), texture_format_);
 
   UpdatableTile* added_tile = tile.get();
-  tiler_->AddTile(tile.PassAs<LayerTilingData::Tile>(), i, j);
+  tiler_->AddTile(tile.Pass(), i, j);
 
   added_tile->dirty_rect = tiler_->TileRect(added_tile);
 
   // Temporary diagnostic crash.
   CHECK(added_tile);
   CHECK(TileAt(i, j));
 
   return added_tile;
 }
 
@@ skipping 572 matching lines @@
   gfx::Rect prepaint_rect = visible_content_rect();
   prepaint_rect.Inset(-tiler_->tile_size().width() * kPrepaintColumns,
                       -tiler_->tile_size().height() * kPrepaintRows);
   gfx::Rect content_rect(content_bounds());
   prepaint_rect.Intersect(content_rect);
 
   return prepaint_rect;
 }
 
 }  // namespace cc