Use mojo typemaps to simplify arc::IntentFilter::IntentFilter()

components/arc/intent_helper/arc_intent_helper_bridge.h

Index: components/arc/intent_helper/arc_intent_helper_bridge.h
diff --git a/components/arc/intent_helper/arc_intent_helper_bridge.h b/components/arc/intent_helper/arc_intent_helper_bridge.h
index 1955228ccd59c6e7231ee9ce8efca7514f47e779..64eb02329292ac6722e2ee4e1e318b17457a0032 100644
--- a/components/arc/intent_helper/arc_intent_helper_bridge.h
+++ b/components/arc/intent_helper/arc_intent_helper_bridge.h
@@ -30,6 +30,7 @@ namespace arc {
 
 class ActivityIconLoader;
 class ArcBridgeService;
+class IntentFilter;
 class LocalActivityResolver;
 
 // Receives intents from ARC.
@@ -64,7 +65,7 @@ class ArcIntentHelperBridge
   // mojom::IntentHelperHost
   void OnIconInvalidated(const std::string& package_name) override;
   void OnIntentFiltersUpdated(
-      std::vector<mojom::IntentFilterPtr> intent_filters) override;
+      std::vector<IntentFilter> intent_filters) override;
   void OnOpenDownloads() override;
   void OnOpenUrl(const std::string& url) override;
   void OpenWallpaperPicker() override;