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

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 <limits>
 #include <set>
 
@@ skipping 71 matching lines @@
 PictureLayerImpl::~PictureLayerImpl() {
   layer_tree_impl()->UnregisterPictureLayerImpl(this);
 }
 
 const char* PictureLayerImpl::LayerTypeAsString() const {
   return "cc::PictureLayerImpl";
 }
 
 scoped_ptr<LayerImpl> PictureLayerImpl::CreateLayerImpl(
     LayerTreeImpl* tree_impl) {
-  return PictureLayerImpl::Create(tree_impl, id()).PassAs<LayerImpl>();
+  return PictureLayerImpl::Create(tree_impl, id());
 }
 
 void PictureLayerImpl::PushPropertiesTo(LayerImpl* base_layer) {
   // It's possible this layer was never drawn or updated (e.g. because it was
   // a descendant of an opacity 0 layer).
   DoPostCommitInitializationIfNeeded();
   PictureLayerImpl* layer_impl = static_cast<PictureLayerImpl*>(base_layer);
 
   // We have already synced the important bits from the the active layer, and
   // we will soon swap out its tilings and use them for recycling. However,
@@ skipping 1684 matching lines @@
       PictureLayerTilingSet::TilingRange tiling_range = CurrentTilingRange();
       size_t current_tiling_range_offset = current_tiling_ - tiling_range.start;
       return tiling_range.end - 1 - current_tiling_range_offset;
     }
   }
   NOTREACHED();
   return 0;
 }
 
 }  // namespace cc