Move MaxScrollOffset to property_trees

cc/layers/scrollbar_layer_unittest.cc

 // 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.
 
 #include <stddef.h>
 
 #include <unordered_map>
 
 #include "base/thread_task_runner_handle.h"
 #include "cc/animation/scrollbar_animation_controller.h"
@@ skipping 437 matching lines @@
     scoped_refptr<Layer> child2;
     const bool kIsLeftSideVerticalScrollbar = false;
     child2 = SolidColorScrollbarLayer::Create(
         layer_settings(), scrollbar->Orientation(), kThumbThickness,
         kTrackStart, kIsLeftSideVerticalScrollbar, child1->id());
     child2->ToScrollbarLayer()->SetScrollLayer(scroll_layer->id());
     scroll_layer->AddChild(child1);
     scroll_layer->InsertChild(child2, 1);
     layer_tree_root->AddChild(scroll_layer);
     layer_tree_host_->SetRootLayer(layer_tree_root);
+
+    // Choose layer bounds to give max_scroll_offset = (8, 8).
+    layer_tree_root->SetBounds(gfx::Size(2, 2));
+    scroll_layer->SetBounds(gfx::Size(10, 10));
+
     layer_tree_host_->UpdateLayers();
   }
+
   LayerImpl* layer_impl_tree_root =
       layer_tree_host_->CommitAndCreateLayerImplTree();
   LayerImpl* scroll_layer_impl = layer_impl_tree_root->children()[0].get();
 
   auto* scrollbar_layer_impl = static_cast<ScrollbarLayerImplBase*>(
       scroll_layer_impl->children()[1].get());
 
-  // Choose layer bounds to give max_scroll_offset = (8, 8).
-  layer_impl_tree_root->SetBounds(gfx::Size(2, 2));
-  scroll_layer_impl->SetBounds(gfx::Size(10, 10));
   scroll_layer_impl->ScrollBy(gfx::Vector2dF(4.f, 0.f));
 
   scrollbar_layer_impl->SetBounds(gfx::Size(kTrackLength, kThumbThickness));
   scrollbar_layer_impl->SetCurrentPos(4.f);
 
   {
     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 
     AppendQuadsData data;
     scrollbar_layer_impl->AppendQuads(render_pass.get(), &data);
@@ skipping 529 matching lines @@
   TestScale(gfx::Rect(1240, 0, 15, 1333), 2.7754839f);
   TestScale(gfx::Rect(1240, 0, 15, 677), 2.46677136f);
 
   // Horizontal Scrollbars.
   TestScale(gfx::Rect(0, 1240, 1333, 15), 2.7754839f);
   TestScale(gfx::Rect(0, 1240, 677, 15), 2.46677136f);
 }
 
 }  // namespace
 }  // namespace cc