compositor: Change how attributes are set during ui::Layer::Clone().

ui/compositor/layer_unittest.cc

 // Copyright (c) 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 "ui/compositor/layer.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
@@ skipping 772 matching lines @@
 
   clone = layer->Clone();
 
   // The clone is a copy of the latest state.
   EXPECT_TRUE(clone->GetTargetTransform().IsIdentity());
   EXPECT_EQ(kTransparent, clone->background_color());
   EXPECT_EQ(kTransparent, clone->GetTargetColor());
   EXPECT_FALSE(clone->layer_inverted());
   EXPECT_FALSE(clone->fills_bounds_opaquely());
 
+  // A solid color layer with transparent color can be marked as opaque. The
+  // clone should retain this state.
+  layer.reset(CreateLayer(LAYER_SOLID_COLOR));
+  layer->SetColor(kTransparent);
+  layer->SetFillsBoundsOpaquely(true);
+
+  clone = layer->Clone();
+  EXPECT_TRUE(clone->GetTargetTransform().IsIdentity());
+  EXPECT_EQ(kTransparent, clone->background_color());
+  EXPECT_EQ(kTransparent, clone->GetTargetColor());
+  EXPECT_FALSE(clone->layer_inverted());
+  EXPECT_TRUE(clone->fills_bounds_opaquely());
+
   layer.reset(CreateLayer(LAYER_SOLID_COLOR));
   layer->SetVisible(true);
   layer->SetOpacity(1.0f);
   layer->SetColor(SK_ColorRED);
 
   ScopedLayerAnimationSettings settings(layer->GetAnimator());
   layer->SetVisible(false);
   layer->SetOpacity(0.0f);
   layer->SetColor(SK_ColorGREEN);
 
@@ skipping 1480 matching lines @@
   layer.set_name("foo");
   std::unique_ptr<base::trace_event::ConvertableToTraceFormat> debug_info =
       layer.TakeDebugInfo(nullptr);
   std::string trace_format("bar,");
   debug_info->AppendAsTraceFormat(&trace_format);
   std::string expected("bar,{\"layer_name\":\"foo\"}");
   EXPECT_EQ(expected, trace_format);
 }
 
 }  // namespace ui