bind-gen: Fix the generated file list to supprot WebGL2

Bug: 839389
Change-Id: I4779bdcef67e71cb4798cef5aa5e241d93578d58
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2153168Reviewed-by: Hitoshi Yoshida <peria@chromium.org>
Commit-Queue: Yuki Shiino <yukishiino@chromium.org>
Cr-Commit-Position: refs/heads/master@{#759964}

third_party/blink/renderer/bindings/generated_in_modules.gni

@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("//third_party/blink/renderer/config.gni")
+
 generated_enumeration_sources_in_modules = [
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_app_banner_prompt_outcome.cc",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_app_banner_prompt_outcome.h",
@@ -1190,8 +1192,6 @@ generated_interface_sources_in_modules = [
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_wake_lock_sentinel.h",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_wave_shaper_node.cc",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_wave_shaper_node.h",
-  "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_webgl2_compute_rendering_context.cc",
-  "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_webgl2_compute_rendering_context.h",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_webgl2_rendering_context.cc",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_webgl2_rendering_context.h",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_webgl_active_info.cc",
@@ -1374,6 +1374,14 @@ if (!is_android) {
   ]
 }
 
+# WebGL2
+if (support_webgl2_compute_context) {
+  generated_interface_sources_in_modules += [
+    "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_webgl2_compute_rendering_context.cc",
+    "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/v8_webgl2_compute_rendering_context.h",
+  ]
+}
+
 generated_interface_sources_in_modules += [
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/init_idl_interfaces.cc",
   "$root_gen_dir/third_party/blink/renderer/bindings/modules/v8/init_idl_interfaces.h",