convert //gpu to std::unique_ptr

gpu/command_buffer/tests/gl_cube_map_texture_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 <GLES2/gl2.h>
 #include <stdint.h>
 
 #include "base/command_line.h"
 #include "base/strings/string_number_conversions.h"
 #include "gpu/command_buffer/tests/gl_manager.h"
@@ skipping 117 matching lines @@
                          texture_, 0);
 
   // force_cube_map_positive_x_allocation workaround prevents Nexus 5 crash.
   // TODO(dshwang): remove the workaround when it's fixed. crbug.com/518889
   EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError());
 
   // Check that FB is not complete.
   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT),
             glCheckFramebufferStatus(GL_FRAMEBUFFER));
   GLsizei size = width_ * width_ * 4;
-  scoped_ptr<uint8_t[]> pixels(new uint8_t[size]);
+  std::unique_ptr<uint8_t[]> pixels(new uint8_t[size]);
   glReadPixels(0, 0, width_, width_, GL_RGBA, GL_UNSIGNED_BYTE, pixels.get());
   EXPECT_EQ(static_cast<GLenum>(GL_INVALID_FRAMEBUFFER_OPERATION),
             glGetError());
 }
 
 }  // namespace gpu