Replace scoped_ptr with std::unique_ptr in //ui

ui/snapshot/snapshot_aura_unittest.cc

 // Copyright (c) 2013 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 "ui/snapshot/snapshot.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
@@ skipping 168 matching lines @@
 
    private:
     friend class base::RefCountedThreadSafe<SnapshotHolder>;
 
     virtual ~SnapshotHolder() {}
 
     gfx::Image image_;
     bool completed_;
   };
 
-  scoped_ptr<aura::test::AuraTestHelper> helper_;
-  scoped_ptr<aura::Window> test_window_;
-  scoped_ptr<TestPaintingWindowDelegate> delegate_;
+  std::unique_ptr<aura::test::AuraTestHelper> helper_;
+  std::unique_ptr<aura::Window> test_window_;
+  std::unique_ptr<TestPaintingWindowDelegate> delegate_;
   std::vector<unsigned char> png_representation_;
 
   DISALLOW_COPY_AND_ASSIGN(SnapshotAuraTest);
 };
 
 TEST_F(SnapshotAuraTest, FullScreenWindow) {
   SetupTestWindow(root_window()->bounds());
   WaitForDraw();
 
   gfx::Image snapshot = GrabSnapshotForTestWindow();
@@ skipping 90 matching lines @@
   gfx::SizeF snapshot_size(test_bounds.size());
   snapshot_size.Scale(2.0f);
 
   gfx::Image snapshot = GrabSnapshotForTestWindow();
   EXPECT_EQ(gfx::ToRoundedSize(snapshot_size).ToString(),
             snapshot.Size().ToString());
   EXPECT_EQ(0u, GetFailedPixelsCountWithScaleFactor(snapshot, 2));
 }
 
 }  // namespace ui