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

cc/raster/task_graph_runner.h

 // Copyright 2014 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.
 
 #ifndef CC_RASTER_TASK_GRAPH_RUNNER_H_
 #define CC_RASTER_TASK_GRAPH_RUNNER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <map>
+#include <memory>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "cc/base/cc_export.h"
 
 namespace cc {
 
 class TaskGraphRunner;
 
 // A task which can be run by a TaskGraphRunner. To run a Task, it should be
 // inserted into a TaskGraph, which can then be scheduled on the
 // TaskGraphRunner.
 class CC_EXPORT Task : public base::RefCountedThreadSafe<Task> {
@@ skipping 189 matching lines @@
  private:
   TaskGraph* graph_;
   const Task* task_;
   size_t current_index_;
   TaskGraph::Node* current_node_;
 };
 
 }  // namespace cc
 
 #endif  // CC_RASTER_TASK_GRAPH_RUNNER_H_