Fix Vulkan embedder example (#39052)

Author: nanokatze

examples/vulkan_glfw/CMakeLists.txt

@@ -40,7 +40,7 @@ set(GLFW_VULKAN_STATIC OFF CACHE BOOL "" FORCE)
 add_subdirectory(${GLFW_REPOSITORY} build_glfw)
 
 target_link_libraries(${EXE_NAME} PRIVATE glfw)
-target_include_directories(${EXE_NAME} PRIVATE $(GLFW_REPOSITORY)/include)
+target_include_directories(${EXE_NAME} PRIVATE ${GLFW_REPOSITORY}/include)
 
 
 # Dependency: Flutter Engine

examples/vulkan_glfw/src/main.cc

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <chrono>
 #include <cstdlib>
 #include <iostream>
 #include <optional>