Make default AddressResolve implementation the default

This avoids having to manually define CHIP_ADDRESS_RESOLVE_IMPL_INCLUDE_HEADER
with the default value in non-gn build systems (e.g. Xcode).

Author: ksperling-apple

src/darwin/Framework/Matter.xcodeproj/project.pbxproj

@@ -2031,7 +2031,6 @@
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"$(inherited)",
 					CHIP_HAVE_CONFIG_H,
-					"CHIP_ADDRESS_RESOLVE_IMPL_INCLUDE_HEADER=<lib/address_resolve/AddressResolve_DefaultImpl.h>",
 					CONFIG_BUILD_FOR_HOST_UNIT_TEST,
 					"CHIP_CONFIG_SKIP_APP_SPECIFIC_GENERATED_HEADER_INCLUDES=1",
 					"CONFIG_USE_INTERACTIVE_MODE=1",
@@ -2105,7 +2104,6 @@
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"$(inherited)",
 					CHIP_HAVE_CONFIG_H,
-					"CHIP_ADDRESS_RESOLVE_IMPL_INCLUDE_HEADER=<lib/address_resolve/AddressResolve_DefaultImpl.h>",
 					CONFIG_BUILD_FOR_HOST_UNIT_TEST,
 					"CHIP_CONFIG_SKIP_APP_SPECIFIC_GENERATED_HEADER_INCLUDES=1",
 					"CONFIG_USE_INTERACTIVE_MODE=1",
@@ -2208,7 +2206,6 @@
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"DEBUG=1",
-					"CHIP_ADDRESS_RESOLVE_IMPL_INCLUDE_HEADER=<lib/address_resolve/AddressResolve_DefaultImpl.h>",
 					"$(inherited)",
 				);
 				GCC_SYMBOLS_PRIVATE_EXTERN = YES;
@@ -2252,7 +2249,6 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					CHIP_HAVE_CONFIG_H,
-					"CHIP_ADDRESS_RESOLVE_IMPL_INCLUDE_HEADER=<lib/address_resolve/AddressResolve_DefaultImpl.h>",
 					"$(inherited)",
 					"CHIP_CONFIG_SKIP_APP_SPECIFIC_GENERATED_HEADER_INCLUDES=1",
 					"MTR_ENABLE_PROVISIONAL=1",
@@ -2422,7 +2418,6 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					CHIP_HAVE_CONFIG_H,
-					"CHIP_ADDRESS_RESOLVE_IMPL_INCLUDE_HEADER=<lib/address_resolve/AddressResolve_DefaultImpl.h>",
 					"$(inherited)",
 					"CHIP_CONFIG_SKIP_APP_SPECIFIC_GENERATED_HEADER_INCLUDES=1",
 					"MTR_ENABLE_PROVISIONAL=1",

src/lib/address_resolve/AddressResolve.h

@@ -253,13 +253,17 @@ class Resolver
 } // namespace AddressResolve
 } // namespace chip
 
-// outside the open space, include the required platform headers for the
-// actual implementation.
+// Include the required platform header for the actual implementation, if defined.
+// Otherwise assume the default implementation is being used.
 // Expectations of this include:
 //   - define the `Impl::NodeLookupHandle` deriving from NodeLookupHandleBase
 //   - corresponding CPP file should provide a valid Resolver::Instance()
 //     implementation
+#ifdef CHIP_ADDRESS_RESOLVE_IMPL_INCLUDE_HEADER
 #include CHIP_ADDRESS_RESOLVE_IMPL_INCLUDE_HEADER
+#else
+#include <lib/address_resolve/AddressResolve_DefaultImpl.h>
+#endif
 
 namespace chip {
 namespace AddressResolve {

src/lib/address_resolve/BUILD.gn

@@ -17,10 +17,6 @@ import("//build_overrides/chip.gni")
 
 import("address_resolve.gni")
 
-config("default_address_resolve_config") {
-  defines = [ "CHIP_ADDRESS_RESOLVE_IMPL_INCLUDE_HEADER=<lib/address_resolve/AddressResolve_DefaultImpl.h>" ]
-}
-
 static_library("address_resolve") {
   public_deps = [
     "${chip_root}/src/lib/asn1",
@@ -44,8 +40,6 @@ static_library("address_resolve") {
       "AddressResolve_DefaultImpl.cpp",
       "AddressResolve_DefaultImpl.h",
     ]
-
-    public_configs = [ ":default_address_resolve_config" ]
   } else if (chip_address_resolve_strategy == "custom") {
     # nothing to do here, custom implementation
     # assume CHIP_ADDRESS_RESOLVE_IMPL_INCLUDE_HEADER is defined as a constant