Merge branch 'ml-model-downloader' into fis-token

Author: manjanac

Package.swift

@@ -607,6 +607,37 @@ let package = Package(
       ]
     ),
 
+    .target(
+      name: "FirebaseMessaging",
+      dependencies: [
+        "FirebaseCore",
+        "FirebaseInstanceID",
+        "GoogleUtilities_AppDelegateSwizzler",
+        "GoogleUtilities_Environment",
+        "GoogleUtilities_Reachability",
+        "GoogleUtilities_UserDefaults",
+      ],
+      path: "FirebaseMessaging/Sources",
+      publicHeadersPath: "Public",
+      cSettings: [
+        .headerSearchPath("../../"),
+      ],
+      linkerSettings: [
+        .linkedFramework("SystemConfiguration", .when(platforms: .some([.iOS, .macOS, .tvOS]))),
+      ]
+    ),
+    .testTarget(
+      name: "MessagingUnit",
+      dependencies: ["FirebaseMessaging", "OCMock"],
+      path: "FirebaseMessaging/Tests/UnitTests",
+      exclude: [
+        "FIRMessagingContextManagerServiceTest.m", // TODO: Adapt its NSBundle usage to SPM.
+      ],
+      cSettings: [
+        .headerSearchPath("../../.."),
+      ]
+    ),
+
     .target(
       name: "SharedTestUtilities",
       dependencies: ["FirebaseCore", "OCMock"],