List IDL compiler sources as inputs to GN's idl_impl action

This simply copies the inputs of the similar idl_compiler action, and
fixes a dependency issue where e.g. UnionTypes{Core,Modules}.* would not
be regenerated properly when the compiler sources were modified.

BUG=240176, 321462

Review URL: https://codereview.chromium.org/1014793002

git-svn-id: svn://svn.chromium.org/blink/trunk@192014 bbb929c8-8fbe-4397-9dbb-9b2b20218538
1 file changed
tree: b6724450cb6763cbd2fbaecb1c58b4175536b76c
  1. third_party/