[bindings] Move generated files of testing dictionaries in GN

This CL moves handling of generated files for testing from
core/BUILD.gn to bindings/core/v8/BUILD.gn.
And supports the new code generator case.


Bug: 839389
Change-Id: Ie76713167c949e9987a983833d08b6c69c80026d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2089561Reviewed-by: Yuki Shiino <yukishiino@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Hitoshi Yoshida <peria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#747662}

third_party/blink/renderer/bindings/core/v8/BUILD.gn

@@ -112,6 +112,19 @@ jumbo_source_set("testing") {
   sources = generated_core_testing_dictionary_files +
             generated_core_testing_callback_function_files
 
+  testing_idl_interface_files =
+      webcore_testing_idl_files + generated_webcore_testing_idl_files +
+      webcore_testing_idl_with_modules_dependency_files
+  if (!use_v8_bind_gen_for_dictionary) {
+    testing_idl_interface_files += core_testing_dictionary_idl_files
+  }
+  sources += process_file_template(
+          testing_idl_interface_files,
+          [
+            "$bindings_core_v8_output_dir/v8_{{source_name_part}}.cc",
+            "$bindings_core_v8_output_dir/v8_{{source_name_part}}.h",
+          ])
+
   configs -= core_config_remove
   configs += core_config_add + [ "//third_party/blink/renderer:inside_blink" ] -
              [ "//third_party/blink/renderer/core:config" ]

third_party/blink/renderer/core/BUILD.gn

@@ -314,19 +314,6 @@ jumbo_source_set("testing") {
     "timing/internals_profiler.cc",
     "timing/internals_profiler.h",
   ]
-
-  # Compile the sources produced by these IDL file lists.
-  testing_idl_files =
-      webcore_testing_idl_files + core_testing_dictionary_idl_files +
-      generated_webcore_testing_idl_files +
-      webcore_testing_idl_with_modules_dependency_files
-
-  sources += process_file_template(
-          testing_idl_files,
-          [
-            "$bindings_core_v8_output_dir/v8_{{source_name_part}}.cc",
-            "$bindings_core_v8_output_dir/v8_{{source_name_part}}.h",
-          ])
 }
 
 # core_bindings_generated ------------------------------------------------------