cc: Move SyncedScrollOffset to scroll tree

cc/tiles/tile_manager_unittest.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 <stddef.h>
 #include <stdint.h>
 
 #include "base/run_loop.h"
 #include "base/thread_task_runner_handle.h"
 #include "cc/playback/display_list_raster_source.h"
@@ skipping 1463 matching lines @@
   recording_source->Rerecord();
 
   scoped_refptr<DisplayListRasterSource> raster_source =
       DisplayListRasterSource::CreateFromDisplayListRecordingSource(
           recording_source.get(), false);
 
   FakePictureLayerTilingClient tiling_client;
   tiling_client.SetTileSize(size);
 
   scoped_ptr<PictureLayerImpl> layer_impl =
-      PictureLayerImpl::Create(host_impl_.active_tree(), 1, false, nullptr);
+      PictureLayerImpl::Create(host_impl_.active_tree(), 1, false);
   PictureLayerTilingSet* tiling_set = layer_impl->picture_layer_tiling_set();
 
   PictureLayerTiling* tiling = tiling_set->AddTiling(1.0f, raster_source);
   tiling->set_resolution(HIGH_RESOLUTION);
   tiling->CreateAllTilesForTesting();
   tiling->SetTilePriorityRectsForTesting(
       gfx::Rect(layer_bounds),   // Visible rect.
       gfx::Rect(layer_bounds),   // Skewport rect.
       gfx::Rect(layer_bounds),   // Soon rect.
       gfx::Rect(layer_bounds));  // Eventually rect.
@@ skipping 198 matching lines @@
     recording_source->add_draw_image(blue_image.get(), gfx::Point());
     recording_source->Rerecord();
     scoped_refptr<DisplayListRasterSource> raster =
         DisplayListRasterSource::CreateFromDisplayListRecordingSource(
             recording_source.get(), false);
 
     FakePictureLayerTilingClient tiling_client;
     tiling_client.SetTileSize(size);
 
     scoped_ptr<PictureLayerImpl> layer =
-        PictureLayerImpl::Create(host_impl_->active_tree(), 1, false, nullptr);
+        PictureLayerImpl::Create(host_impl_->active_tree(), 1, false);
     PictureLayerTilingSet* tiling_set = layer->picture_layer_tiling_set();
 
     auto* tiling = tiling_set->AddTiling(1.0f, raster);
     tiling->set_resolution(resolutions[i]);
     tiling->CreateAllTilesForTesting();
     tiling->SetTilePriorityRectsForTesting(
         gfx::Rect(size),   // Visible rect.
         gfx::Rect(size),   // Skewport rect.
         gfx::Rect(size),   // Soon rect.
         gfx::Rect(size));  // Eventually rect.
@@ skipping 240 matching lines @@
 
 // Ensures that the tile manager does not attempt to reuse tiles when partial
 // raster is disabled.
 TEST_F(TileManagerTest, PartialRasterSuccessfullyDisabled) {
   RunPartialRasterCheck(std::move(host_impl_),
                         false /* partial_raster_enabled */);
 }
 
 }  // namespace
 }  // namespace cc