Replace unique_ptr.reset(other_unique_ptr.release()) with std::move() in cc/trees/

cc/trees/layer_tree_host_impl_unittest.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/trees/layer_tree_host_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <cmath>
@@ skipping 2099 matching lines @@
   scroll_child->SetPosition(gfx::PointF(20.f, 20.f));
   scroll_child_clip->test_properties()->AddChild(std::move(scroll_child));
 
   child_clip = scroll_child_clip.get();
   viewport_scroll->test_properties()->AddChild(std::move(scroll_child_clip));
 
   child_clip->test_properties()->scroll_parent = parent;
   std::unique_ptr<std::set<LayerImpl*>> scroll_children(
       new std::set<LayerImpl*>);
   scroll_children->insert(child_clip);
-  parent->test_properties()->scroll_children.reset(scroll_children.release());
+  parent->test_properties()->scroll_children = std::move(scroll_children);
   host_impl_->active_tree()->BuildPropertyTreesForTesting();
 
   DrawFrame();
 
   {
     host_impl_->ScrollBegin(BeginState(gfx::Point(21, 21)).get(),
                             InputHandler::TOUCHSCREEN);
     host_impl_->ScrollBy(
         UpdateState(gfx::Point(21, 21), gfx::Vector2d(5, 5)).get());
     host_impl_->ScrollBy(
@@ skipping 9863 matching lines @@
     else
       EXPECT_FALSE(tile->HasRasterTask());
   }
   Region expected_invalidation(
       raster_source->GetRectForImage(checkerable_image->uniqueID()));
   EXPECT_EQ(expected_invalidation, *(root->GetPendingInvalidation()));
 }
 
 }  // namespace
 }  // namespace cc