Implement Stub for policy bridge to ARC

components/arc/common/policy.mojom

Index: components/arc/common/policy.mojom
diff --git a/components/arc/common/video.mojom b/components/arc/common/policy.mojom
similarity index 53%
copy from components/arc/common/video.mojom
copy to components/arc/common/policy.mojom
index b21a1dbc4a62a3951bcf45f2441c67f1adde745b..ad393af8b7474dab6035b3d2b3adbd55a6ea211d 100644
--- a/components/arc/common/video.mojom
+++ b/components/arc/common/policy.mojom
@@ -4,12 +4,15 @@
 
 module arc;
 
-interface VideoHost {
-  // Notifies Chrome a request for ipc channel of video acceleration.
-  OnRequestArcVideoAcceleratorChannel() => (handle channel_handle);
+interface PolicyHost {
+  // Get policies from CrOs.
+  GetPolicy() => (string policy);
 };
 
-interface VideoInstance {
+interface PolicyInstance {
   // Establishes full-duplex communication with the host.
-  Init(VideoHost host_ptr);
+  Init(PolicyHost host_ptr);
+
+  // Indicates policy has changed
+  OnPolicyChanged();
 };