Host-side implementation of ARC Intent handler

components/arc/common/intent.mojom

Index: components/arc/common/intent.mojom
diff --git a/components/arc/common/video.mojom b/components/arc/common/intent.mojom
similarity index 53%
copy from components/arc/common/video.mojom
copy to components/arc/common/intent.mojom
index b21a1dbc4a62a3951bcf45f2441c67f1adde745b..d8ae21e208b0d01351e6f9fa2f5065d08c9ea0c7 100644
--- a/components/arc/common/video.mojom
+++ b/components/arc/common/intent.mojom
@@ -4,12 +4,11 @@
 
 module arc;
 
-interface VideoHost {
-  // Notifies Chrome a request for ipc channel of video acceleration.
-  OnRequestArcVideoAcceleratorChannel() => (handle channel_handle);
+interface IntentHelperHost {
+  OnOpenUrl@0(string url);
 };
 
-interface VideoInstance {
+interface IntentHelperInstance {
   // Establishes full-duplex communication with the host.
-  Init(VideoHost host_ptr);
+  Init@0(IntentHelperHost host_ptr);
 };