Add OWNERS for generator and emdawnwebgpu

emdawnwebgpu is a new directory that will be populated in another CL.

Bug: 346806934
Change-Id: I3c5bc9e0e6e43b84d572fe14e3b336d9c2b074be
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/196147
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Auto-Submit: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
diff --git a/generator/OWNERS b/generator/OWNERS
new file mode 100644
index 0000000..dbbfdeb
--- /dev/null
+++ b/generator/OWNERS
@@ -0,0 +1,3 @@
+# Code generators are used almost entirely for Dawn and Emscripten stuff.
+file:../src/dawn/OWNERS
+file:../src/emdawnwebgpu/OWNERS
diff --git a/src/emdawnwebgpu/OWNERS b/src/emdawnwebgpu/OWNERS
new file mode 100644
index 0000000..5460180
--- /dev/null
+++ b/src/emdawnwebgpu/OWNERS
@@ -0,0 +1,3 @@
+kainino@chromium.org
+lokokung@google.com
+file:../dawn/OWNERS