Transfer LayerImpl ownership to LayerTreeImpl

cc/trees/layer_tree_host_unittest_damage.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/trees/layer_tree_host.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/location.h"
 #include "base/time/time.h"
@@ skipping 393 matching lines @@
         EndTest();
         break;
     }
     return draw_result;
   }
 
   void SwapBuffersOnThread(LayerTreeHostImpl* host_impl, bool result) override {
     ++did_swaps_;
     EXPECT_TRUE(result);
     LayerImpl* root = host_impl->active_tree()->root_layer();
-    LayerImpl* scroll_clip_layer = root->children()[0].get();
-    LayerImpl* scroll_layer = scroll_clip_layer->children()[0].get();
+    LayerImpl* scroll_clip_layer = root->children()[0];
+    LayerImpl* scroll_layer = scroll_clip_layer->children()[0];
     switch (did_swaps_) {
       case 1:
         // Test that modifying the position of the content layer (not
         // scrolling) won't damage the scrollbar.
         MainThreadTaskRunner()->PostTask(
             FROM_HERE, base::Bind(&LayerTreeHostDamageTestScrollbarDoesDamage::
                                       ModifyContentLayerPosition,
                                   base::Unretained(this)));
         break;
       case 2:
@@ skipping 71 matching lines @@
         NOTREACHED();
         break;
     }
     return draw_result;
   }
 
   void SwapBuffersOnThread(LayerTreeHostImpl* host_impl, bool result) override {
     ++did_swaps_;
     EXPECT_TRUE(result);
     LayerImpl* root = host_impl->active_tree()->root_layer();
-    LayerImpl* scroll_clip_layer = root->children()[0].get();
-    LayerImpl* scroll_layer = scroll_clip_layer->children()[0].get();
+    LayerImpl* scroll_clip_layer = root->children()[0];
+    LayerImpl* scroll_layer = scroll_clip_layer->children()[0];
     switch (did_swaps_) {
       case 1:
         // Scroll on the thread.  This should damage the scrollbar for the
         // next draw on the thread.
         scroll_layer->ScrollBy(gfx::Vector2dF(10.f, 10.f));
         host_impl->SetNeedsRedraw();
         break;
       case 2:
         // Forcibly send the scroll to the main thread.
         PostSetNeedsCommitToMainThread();
@@ skipping 10 matching lines @@
 
   void AfterTest() override { EXPECT_EQ(3, did_swaps_); }
 
   int did_swaps_;
 };
 
 MULTI_THREAD_TEST_F(LayerTreeHostDamageTestScrollbarCommitDoesNoDamage);
 
 }  // namespace
 }  // namespace cc