Re-write many calls to WrapUnique() with MakeUnique()

cc/tiles/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/tiles/picture_layer_tiling_set.h"
 
 #include <stddef.h>
 
 #include <limits>
 #include <set>
@@ skipping 253 matching lines @@
     float contents_scale,
     scoped_refptr<RasterSource> raster_source) {
   if (!raster_source_)
     raster_source_ = 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(base::WrapUnique(
-      new PictureLayerTiling(tree_, contents_scale, raster_source, client_)));
+  tilings_.push_back(base::MakeUnique<PictureLayerTiling>(
+      tree_, contents_scale, raster_source, client_));
   PictureLayerTiling* appended = tilings_.back().get();
   state_since_last_tile_priority_update_.added_tilings = true;
 
   std::sort(tilings_.begin(), tilings_.end(), LargestToSmallestScaleFunctor());
   return appended;
 }
 
 int PictureLayerTilingSet::NumHighResTilings() const {
   return std::count_if(tilings_.begin(), tilings_.end(),
                        [](const std::unique_ptr<PictureLayerTiling>& tiling) {
@@ skipping 462 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