[google_maps_flutter_android] Add PlatformCap pigeon type.

packages/google_maps_flutter/google_maps_flutter/CHANGELOG.md

@@ -1,5 +1,6 @@
-## NEXT
+## 2.9.1
 
+* Updates platform_interface dependency to 2.9.2.
 * Updates minimum supported SDK version to Flutter 3.19/Dart 3.3.
 
 ## 2.9.0

packages/google_maps_flutter/google_maps_flutter/pubspec.yaml

@@ -2,7 +2,7 @@ name: google_maps_flutter
 description: A Flutter plugin for integrating Google Maps in iOS and Android applications.
 repository: https://github.com/flutter/packages/tree/main/packages/google_maps_flutter/google_maps_flutter
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+maps%22
-version: 2.9.0
+version: 2.9.1
 
 environment:
   sdk: ^3.4.0
@@ -23,7 +23,7 @@ dependencies:
     sdk: flutter
   google_maps_flutter_android: ^2.13.0
   google_maps_flutter_ios: ^2.12.0
-  google_maps_flutter_platform_interface: ^2.9.0
+  google_maps_flutter_platform_interface: ^2.9.2
   google_maps_flutter_web: ^0.5.10
 
 dev_dependencies:

packages/google_maps_flutter/google_maps_flutter_android/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.14.6
+
+* Adds `PlatformCap` for `PlatformPolyline.startCap` and `endCap`.
+
 ## 2.14.5
 
 * Converts `JointType` to enum.

packages/google_maps_flutter/google_maps_flutter_android/android/src/main/java/io/flutter/plugins/googlemaps/Convert.java

@@ -723,8 +723,8 @@ static String interpretPolylineOptions(
       float density) {
     sink.setConsumeTapEvents(polyline.getConsumesTapEvents());
     sink.setColor(polyline.getColor().intValue());
-    sink.setEndCap(toCap(polyline.getEndCap(), assetManager, density));
-    sink.setStartCap(toCap(polyline.getStartCap(), assetManager, density));
+    sink.setEndCap(capFromPigeon(polyline.getEndCap(), assetManager, density));
+    sink.setStartCap(capFromPigeon(polyline.getStartCap(), assetManager, density));
     sink.setGeodesic(polyline.getGeodesic());
     sink.setJointType(jointTypeFromPigeon(polyline.getJointType()));
     sink.setVisible(polyline.getVisible());
@@ -899,25 +899,22 @@ private static List<PatternItem> toPattern(Object o) {
     return pattern;
   }
 
-  private static Cap toCap(Object o, AssetManager assetManager, float density) {
-    final List<?> data = toList(o);
-    switch (toString(data.get(0))) {
-      case "buttCap":
+  private static Cap capFromPigeon(
+      Messages.PlatformCap cap, AssetManager assetManager, float density) {
+    switch (cap.getType()) {
+      case BUTT_CAP:
         return new ButtCap();
-      case "roundCap":
+      case ROUND_CAP:
         return new RoundCap();
-      case "squareCap":
+      case SQUARE_CAP:
         return new SquareCap();
-      case "customCap":
-        if (data.size() == 2) {
-          return new CustomCap(toBitmapDescriptor(data.get(1), assetManager, density));
-        } else {
-          return new CustomCap(
-              toBitmapDescriptor(data.get(1), assetManager, density), toFloat(data.get(2)));
-        }
-      default:
-        throw new IllegalArgumentException("Cannot interpret " + o + " as Cap");
+      case CUSTOM_CAP:
+        assert cap.getRefWidth() != null;
+        return new CustomCap(
+            toBitmapDescriptor(cap.getBitmapDescriptor(), assetManager, density),
+            cap.getRefWidth().floatValue());
     }
+    throw new IllegalArgumentException("Unrecognized Cap type: " + cap.getType().toString());
   }
 
   static String interpretTileOverlayOptions(