Update Chartboost mediation plugin with assembly definitions, meta files and package.json required for UPM publishing.

mediation/Chartboost/package.json

@@ -0,0 +1,21 @@
+{
+  "name": "com.google.ads.mobile.mediation.chartboost",
+  "version": "4.6.0",
+  "displayName": "Google Mobile Ads Chartboost Mediation for Unity",
+  "keywords": [
+    "Google",
+    "Mobile",
+    "Ads",
+    "vh-name:GoogleMobileAdsMediationChartboost",
+    "vh-name:Google Mobile Ads Chartboost Mediation for Unity"
+  ],
+  "author": {
+    "name": "Google LLC",
+    "url": "https://github.com/googleads/googleads-mobile-unity"
+  },
+  "description": "The Google Mobile Ads mediation plugin for Chartboost package allows you to load and display ads from the Chartboost ad network using mediation, for iOS and Android using Google's native iOS and Android Mobile SDKs via a unified C# API in Unity.",
+  "unity": "2019.4",
+  "dependencies": {
+    "com.google.ads.mobile": "9.1.0"
+  }
+}

mediation/Chartboost/source/plugin/Assets/GoogleMobileAds/Mediation/Chartboost/Api/Chartboost/Chartboost.cs → mediation/Chartboost/source/plugin/Assets/GoogleMobileAds/Mediation/Chartboost/Api/Chartboost.cs

@@ -14,23 +14,10 @@
 
 using UnityEngine;
 
-using GoogleMobileAds.Mediation.Chartboost;
 using GoogleMobileAds.Mediation.Chartboost.Common;
 
 namespace GoogleMobileAds.Mediation.Chartboost.Api
 {
-    public enum CBGDPRDataUseConsent
-    {
-        NonBehavioral = 0,
-        Behavioral,
-    }
-
-    public enum CBCCPADataUseConsent
-    {
-        OptOutSale = 0,
-        OptInSale,
-    }
-
     public class Chartboost
     {
         internal static readonly IChartboostClient client = GetChartboostClient();

mediation/Chartboost/source/plugin/Assets/GoogleMobileAds/Mediation/Chartboost/Api/Core/CBCCPADataUseConsent.cs

@@ -0,0 +1,23 @@
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+namespace GoogleMobileAds.Mediation.Chartboost.Api
+{
+    public enum CBCCPADataUseConsent
+    {
+        OptOutSale = 0,
+        OptInSale,
+    }
+}

mediation/Chartboost/source/plugin/Assets/GoogleMobileAds/Mediation/Chartboost/Api/Core/CBGDPRDataUseConsent.cs

@@ -0,0 +1,23 @@
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+namespace GoogleMobileAds.Mediation.Chartboost.Api
+{
+    public enum CBGDPRDataUseConsent
+    {
+        NonBehavioral = 0,
+        Behavioral,
+    }
+}

mediation/Chartboost/source/plugin/Assets/GoogleMobileAds/Mediation/Chartboost/Api/Core/GoogleMobileAds.Mediation.Chartboost.Core.asmdef

@@ -0,0 +1,6 @@
+{
+	"name": "GoogleMobileAds.Mediation.Chartboost.Core",
+	"references": [],
+	"includePlatforms": [],
+	"excludePlatforms": []
+}

mediation/Chartboost/source/plugin/Assets/GoogleMobileAds/Mediation/Chartboost/Api/GoogleMobileAds.Mediation.Chartboost.Api.asmdef

@@ -0,0 +1,11 @@
+{
+	"name": "GoogleMobileAds.Mediation.Chartboost.Api",
+	"references": [
+	    "GoogleMobileAds.Api.Mediation",
+		"GoogleMobileAds.Mediation.Chartboost",
+		"GoogleMobileAds.Mediation.Chartboost.Common",
+		"GoogleMobileAds.Mediation.Chartboost.Core"
+	],
+	"includePlatforms": [],
+	"excludePlatforms": []
+}

mediation/Chartboost/source/plugin/Assets/GoogleMobileAds/Mediation/Chartboost/Common/Chartboost/DummyClient.cs → mediation/Chartboost/source/plugin/Assets/GoogleMobileAds/Mediation/Chartboost/Common/DummyClient.cs

@@ -12,7 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-using System;
 using System.Reflection;
 
 using UnityEngine;