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

cc/raster/tile_task_worker_pool.cc

 // Copyright 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 "cc/raster/tile_task_worker_pool.h"
 
 #include <stddef.h>
 
 #include "base/trace_event/trace_event.h"
 #include "cc/playback/raster_source.h"
@@ skipping 94 matching lines @@
       // playback rect passed to PlaybackToCanvas. crbug.com/519070
       raster_source->PlaybackToCanvas(surface->getCanvas(), canvas_bitmap_rect,
                                       canvas_bitmap_rect, scale,
                                       playback_settings);
 
       if (format == ETC1) {
         TRACE_EVENT0("cc",
                      "TileTaskWorkerPool::PlaybackToMemory::CompressETC1");
         DCHECK_EQ(size.width() % 4, 0);
         DCHECK_EQ(size.height() % 4, 0);
-        scoped_ptr<TextureCompressor> texture_compressor =
+        std::unique_ptr<TextureCompressor> texture_compressor =
             TextureCompressor::Create(TextureCompressor::kFormatETC1);
         texture_compressor->Compress(reinterpret_cast<const uint8_t*>(
                                          surface->peekPixels(nullptr, nullptr)),
                                      reinterpret_cast<uint8_t*>(memory),
                                      size.width(), size.height(),
                                      TextureCompressor::kQualityHigh);
       } else {
         TRACE_EVENT0("cc",
                      "TileTaskWorkerPool::PlaybackToMemory::ConvertRGBA4444");
         SkImageInfo dst_info = SkImageInfo::Make(
@@ skipping 10 matching lines @@
     case RED_8:
     case LUMINANCE_F16:
       NOTREACHED();
       return;
   }
 
   NOTREACHED();
 }
 
 }  // namespace cc