Update from https://crrev.com/314320

cc/test/fake_content_layer_impl.h

 // Copyright 2012 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_TEST_FAKE_CONTENT_LAYER_IMPL_H_
 #define CC_TEST_FAKE_CONTENT_LAYER_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/layers/tiled_layer_impl.h"
 
 namespace cc {
 
 class FakeContentLayerImpl : public TiledLayerImpl {
  public:
   static scoped_ptr<FakeContentLayerImpl> Create(
       LayerTreeImpl* tree_impl, int id) {
-    return make_scoped_ptr(new FakeContentLayerImpl(tree_impl, id));
+    return make_scoped_ptr(new FakeContentLayerImpl(
+        tree_impl, id, new LayerImpl::SyncedScrollOffset));
+  }
+  static scoped_ptr<FakeContentLayerImpl> Create(
+      LayerTreeImpl* tree_impl,
+      int id,
+      scoped_refptr<LayerImpl::SyncedScrollOffset> synced_scroll_offset) {
+    return make_scoped_ptr(
+        new FakeContentLayerImpl(tree_impl, id, synced_scroll_offset));
   }
   ~FakeContentLayerImpl() override;
 
   scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
 
   bool HaveResourceForTileAt(int i, int j);
 
   size_t lost_output_surface_count() const {
     return lost_output_surface_count_;
   }
   void reset_lost_output_surface_count() { lost_output_surface_count_ = 0; }
 
   void ReleaseResources() override;
 
  private:
-  explicit FakeContentLayerImpl(LayerTreeImpl* tree_impl, int id);
+  explicit FakeContentLayerImpl(
+      LayerTreeImpl* tree_impl,
+      int id,
+      scoped_refptr<LayerImpl::SyncedScrollOffset> synced_scroll_offset);
 
   size_t lost_output_surface_count_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_CONTENT_LAYER_IMPL_H_