Added defs in build files for building windows dll

PiperOrigin-RevId: 401062093

cpp/platform/impl/windows/BUILD

@@ -109,25 +109,8 @@ cc_library(
         "wifi_lan_nsd.cc",
         "wifi_lan_socket.cc",
     ],
-    hdrs = [
-        "bluetooth_classic.h",
-        "bluetooth_classic_device.h",
-        "bluetooth_classic_medium.h",
-        "bluetooth_classic_server_socket.h",
-        "bluetooth_classic_socket.h",
-        "condition_variable.h",
-        "executor.h",
-        "mutex.h",
-        "runner.h",
-        "scheduled_executor.h",
-        "submittable_executor.h",
-        "thread_pool.h",
-        "wifi_lan.h",
-    ],
     compatible_with = ["//buildenv/target:non_prod"],
-    copts = [
-        "-Ithird_party/nearby_connections/cpp/platform/impl/windows/generated",
-    ],
+    copts = ["-Ithird_party/nearby_connections/cpp/platform/impl/windows/generated"],
     visibility = [
         "//third_party/nearby_connections/windows:__subpackages__",
     ],
@@ -176,7 +159,7 @@ cc_test(
         "scheduled_executor_test.cc",
         "submittable_executor_test.cc",
     ],
-    copts = ["-Iplatform/impl/windows/generated"],
+    copts = ["-Iplatform/impl/windows/generated -DCORE_ADAPTER_DLL"],
     deps = [
         ":comm",
         ":crypto",