Compute if a layer is clipped outside CalcDrawProps

cc/layers/layer_impl_unittest.cc

 // Copyright 2011 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/layers/layer_impl.h"
 
 #include "cc/layers/painted_scrollbar_layer_impl.h"
 #include "cc/layers/solid_color_scrollbar_layer_impl.h"
 #include "cc/output/filter_operation.h"
 #include "cc/output/filter_operations.h"
@@ skipping 292 matching lines @@
   VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(
       layer->SetScrollDelta(arbitrary_vector2d));
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->PushScrollOffsetFromMainThread(
       gfx::ScrollOffset(arbitrary_vector2d)));
   VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->PushScrollOffsetFromMainThread(
       gfx::ScrollOffset(arbitrary_vector2d)));
 
   // Unrelated functions, always set to new values, always set needs update.
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(
       layer->SetMaskLayer(LayerImpl::Create(host_impl.active_tree(), 4)));
+  host_impl.active_tree()->BuildPropertyTreesForTesting();
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetMasksToBounds(true));
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetContentsOpaque(true));
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(
       layer->SetReplicaLayer(LayerImpl::Create(host_impl.active_tree(), 5)));
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetPosition(arbitrary_point_f));
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetShouldFlattenTransform(false));
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->Set3dSortingContextId(1));
 
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(
       layer->SetDoubleSided(false));  // constructor initializes it to "true".
@@ skipping 397 matching lines @@
 
   ASSERT_TRUE(layer(IV_SCROLL, ACTIVE)->scrollable());
 
   ASSERT_TRUE(LayerHasScrollbar(OV_SCROLL, ACTIVE));
   ASSERT_TRUE(LayerHasScrollbar(IV_CLIP, ACTIVE));
   ASSERT_TRUE(LayerHasScrollbar(IV_SCROLL, ACTIVE));
 }
 
 }  // namespace
 }  // namespace cc