Add a hide_layer_and_subtree() flag to cc::Layer

ui/compositor/layer_unittest.cc

Index: ui/compositor/layer_unittest.cc
diff --git a/ui/compositor/layer_unittest.cc b/ui/compositor/layer_unittest.cc
index c326d4a5ca71d1221144ceec0e23ee02fbfdb27b..0be8a0aa636d83f2f6c353ca53b33f7524bde8cb 100644
--- a/ui/compositor/layer_unittest.cc
+++ b/ui/compositor/layer_unittest.cc
@@ -646,9 +646,9 @@ TEST_F(LayerWithNullDelegateTest, Visibility) {
   EXPECT_TRUE(l1->IsDrawn());
   EXPECT_TRUE(l2->IsDrawn());
   EXPECT_TRUE(l3->IsDrawn());
-  EXPECT_TRUE(l1->cc_layer()->DrawsContent());
-  EXPECT_TRUE(l2->cc_layer()->DrawsContent());
-  EXPECT_TRUE(l3->cc_layer()->DrawsContent());
+  EXPECT_FALSE(l1->cc_layer()->hide_layer_and_subtree());
+  EXPECT_FALSE(l2->cc_layer()->hide_layer_and_subtree());
+  EXPECT_FALSE(l3->cc_layer()->hide_layer_and_subtree());
 
   compositor()->SetRootLayer(l1.get());
 
@@ -658,25 +658,25 @@ TEST_F(LayerWithNullDelegateTest, Visibility) {
   EXPECT_FALSE(l1->IsDrawn());
   EXPECT_FALSE(l2->IsDrawn());
   EXPECT_FALSE(l3->IsDrawn());
-  EXPECT_FALSE(l1->cc_layer()->DrawsContent());
-  EXPECT_FALSE(l2->cc_layer()->DrawsContent());
-  EXPECT_FALSE(l3->cc_layer()->DrawsContent());
+  EXPECT_TRUE(l1->cc_layer()->hide_layer_and_subtree());
+  EXPECT_FALSE(l2->cc_layer()->hide_layer_and_subtree());
+  EXPECT_FALSE(l3->cc_layer()->hide_layer_and_subtree());
 
   l3->SetVisible(false);
   EXPECT_FALSE(l1->IsDrawn());
   EXPECT_FALSE(l2->IsDrawn());
   EXPECT_FALSE(l3->IsDrawn());
-  EXPECT_FALSE(l1->cc_layer()->DrawsContent());
-  EXPECT_FALSE(l2->cc_layer()->DrawsContent());
-  EXPECT_FALSE(l3->cc_layer()->DrawsContent());
+  EXPECT_TRUE(l1->cc_layer()->hide_layer_and_subtree());
+  EXPECT_FALSE(l2->cc_layer()->hide_layer_and_subtree());
+  EXPECT_TRUE(l3->cc_layer()->hide_layer_and_subtree());
 
   l1->SetVisible(true);
   EXPECT_TRUE(l1->IsDrawn());
   EXPECT_TRUE(l2->IsDrawn());
   EXPECT_FALSE(l3->IsDrawn());
-  EXPECT_TRUE(l1->cc_layer()->DrawsContent());
-  EXPECT_TRUE(l2->cc_layer()->DrawsContent());
-  EXPECT_FALSE(l3->cc_layer()->DrawsContent());
+  EXPECT_FALSE(l1->cc_layer()->hide_layer_and_subtree());
+  EXPECT_FALSE(l2->cc_layer()->hide_layer_and_subtree());
+  EXPECT_TRUE(l3->cc_layer()->hide_layer_and_subtree());
 }
 
 // Checks that stacking-related methods behave as advertised.