Convert //cc from scoped_ptr to std::unique_ptr.

cc/input/scroll_state_unittest.cc

 // Copyright 2015 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/input/scroll_state.h"
 
 #include "cc/layers/layer_impl.h"
 #include "cc/test/fake_impl_task_runner_provider.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/test_shared_bitmap_manager.h"
@@ skipping 49 matching lines @@
 TEST_F(ScrollStateTest, CurrentNativeScrollingScrollable) {
   ScrollStateData scroll_state_data;
   ScrollState scroll_state(scroll_state_data);
 
   FakeImplTaskRunnerProvider task_runner_provider;
   TestSharedBitmapManager shared_bitmap_manager;
   TestTaskGraphRunner task_graph_runner;
   FakeLayerTreeHostImpl host_impl(&task_runner_provider, &shared_bitmap_manager,
                                   &task_graph_runner);
 
-  scoped_ptr<LayerImpl> layer_impl =
+  std::unique_ptr<LayerImpl> layer_impl =
       LayerImpl::Create(host_impl.active_tree(), 1);
   ScrollNode* scroll_node =
       host_impl.active_tree()->property_trees()->scroll_tree.Node(
           layer_impl->scroll_tree_index());
   scroll_state.set_current_native_scrolling_node(scroll_node);
   EXPECT_EQ(scroll_node, scroll_state.current_native_scrolling_node());
 }
 
 TEST_F(ScrollStateTest, FullyConsumed) {
   ScrollStateData scroll_state_data;
   scroll_state_data.delta_x = 1;
   scroll_state_data.delta_y = 3;
   ScrollState scroll_state(scroll_state_data);
 
   EXPECT_FALSE(scroll_state.FullyConsumed());
   scroll_state.ConsumeDelta(1, 3);
   EXPECT_TRUE(scroll_state.FullyConsumed());
 }
 }  // namespace cc