Use the solid color detection to create solid layers

cc/test/fake_picture_layer.cc

Index: cc/test/fake_picture_layer.cc
diff --git a/cc/test/fake_picture_layer.cc b/cc/test/fake_picture_layer.cc
index 2a5d2e9a77469e000486cf4d4d924731713deb43..2882c86154910a756d6daa4f50c9406b9f1dcef1 100644
--- a/cc/test/fake_picture_layer.cc
+++ b/cc/test/fake_picture_layer.cc
@@ -33,6 +33,9 @@ bool FakePictureLayer::Update(ResourceUpdateQueue* queue,
 
 void FakePictureLayer::PushPropertiesTo(LayerImpl* layer) {
   PictureLayer::PushPropertiesTo(layer);
+  PictureLayerImpl* layer_impl = static_cast<PictureLayerImpl*>(layer);
+  // the tests expect a non-solid layer
+  layer_impl->SetSolidColorState(false, SK_ColorBLACK);
   push_properties_count_++;
 }