[Extensions Bindings] Add a bridge to use current custom bindings

extensions/renderer/BUILD.gn

Index: extensions/renderer/BUILD.gn
diff --git a/extensions/renderer/BUILD.gn b/extensions/renderer/BUILD.gn
index de91b69ffed94a27a84cc0bc481c64a139729849..49243c8a2feb1b80d8446621cb5e8c874f0b94f4 100644
--- a/extensions/renderer/BUILD.gn
+++ b/extensions/renderer/BUILD.gn
@@ -19,6 +19,8 @@ source_set("renderer") {
     "api_activity_logger.h",
     "api_binding.cc",
     "api_binding.h",
+    "api_binding_bridge.cc",
+    "api_binding_bridge.h",
     "api_binding_hooks.cc",
     "api_binding_hooks.h",
     "api_binding_types.h",
@@ -182,10 +184,14 @@ source_set("renderer") {
     "source_map.h",
     "static_v8_external_one_byte_string_resource.cc",
     "static_v8_external_one_byte_string_resource.h",
+    "string_source_map.cc",

[jbroman, 2016/12/16 19:00:49]

Shouldn't these be in the unit_tests target? It seems a shame to ship these in
prod Chrome if they aren't needed.

[Devlin, 2016/12/16 20:31:17]

Whoops!  Yes, thanks.

+    "string_source_map.h",
     "test_features_native_handler.cc",
     "test_features_native_handler.h",
     "test_native_handler.cc",
     "test_native_handler.h",
+    "test_v8_extension_configuration.cc",
+    "test_v8_extension_configuration.h",
     "user_gestures_native_handler.cc",
     "user_gestures_native_handler.h",
     "user_script_injector.cc",