[core][android] Introduce mbgl::style::LayerTypeInfoupstream/mikhail_LayerTypeInfo

The `LayerTypeInfo` contains static meta data about certain layer type.

Each layer module should have a single immutable `LayerTypeInfo` instance
for the represented layer type. Both `LayerImpl` and `LayerFactory` from the
module always refer to the same `LayerTypeInfo` instance, so address of this
instance can be used as a layer module Id during the process life time.

1 files changed, 2 insertions, 2 deletions

diff --git a/platform/android/src/style/layers/background_layer.cpp b/platform/android/src/style/layers/background_layer.cpp
index c0d3f39bc4..e28fd0798b 100644
--- a/platform/android/src/style/layers/background_layer.cpp
+++ b/platform/android/src/style/layers/background_layer.cpp
@@ -109,12 +109,12 @@ namespace android {
     }  // namespace
 
     jni::Local<jni::Object<Layer>> BackgroundJavaLayerPeerFactory::createJavaLayerPeer(jni::JNIEnv& env, mbgl::Map& map, mbgl::style::Layer& layer) {
-        assert(layer.baseImpl->getLayerFactory() == this);
+        assert(layer.baseImpl->getTypeInfo() == getTypeInfo());
         return createJavaPeer(env, new BackgroundLayer(map, toBackgroundLayer(layer)));
     }
 
     jni::Local<jni::Object<Layer>> BackgroundJavaLayerPeerFactory::createJavaLayerPeer(jni::JNIEnv& env, mbgl::Map& map, std::unique_ptr<mbgl::style::Layer> layer) {
-        assert(layer->baseImpl->getLayerFactory() == this);
+        assert(layer->baseImpl->getTypeInfo() == getTypeInfo());
         return createJavaPeer(env, new BackgroundLayer(map, std::unique_ptr<mbgl::style::BackgroundLayer>(static_cast<mbgl::style::BackgroundLayer*>(layer.release()))));
     }