Add fallback case to layers_extensions.cpp

Bug: http://b/79940628

Test: cts-tradefed run commandAndExit cts -m CtsGpuToolsHostTestCases

Change-Id: I2881ff08cce5c129fd4b261814462d71d2c29a89
diff --git a/libs/graphicsenv/GraphicsEnv.cpp b/libs/graphicsenv/GraphicsEnv.cpp
index 961f101..a8ef7a0 100644
--- a/libs/graphicsenv/GraphicsEnv.cpp
+++ b/libs/graphicsenv/GraphicsEnv.cpp
@@ -56,7 +56,7 @@
     mDriverPath = path;
 }
 
-void GraphicsEnv::setLayerPaths(android_namespace_t* appNamespace, const std::string layerPaths) {
+void GraphicsEnv::setLayerPaths(NativeLoaderNamespace* appNamespace, const std::string layerPaths) {
     if (mLayerPaths.empty()) {
         mLayerPaths = layerPaths;
         mAppNamespace = appNamespace;
@@ -66,7 +66,7 @@
     }
 }
 
-android_namespace_t* GraphicsEnv::getAppNamespace() {
+NativeLoaderNamespace* GraphicsEnv::getAppNamespace() {
     return mAppNamespace;
 }