Issues 373 (Execute Bug), 374 (Remove Tests.Utility) and 375 (Clean warnings)

Src/GoogleApis.Tests/Apis/Upload/ResumableUploadTest.cs

Index: Src/GoogleApis.Tests/Apis/Upload/ResumableUploadTest.cs
===================================================================
--- a/Src/GoogleApis.Tests/Apis/Upload/ResumableUploadTest.cs
 b/Src/GoogleApis.Tests/Apis/Upload/ResumableUploadTest.cs
@@ -75,7 75,7 @@
 /// <summary> A handler which handles uploading an empty file. </summary>
 private class EmptyFileMessageHandler : BaseMockMessageHandler
 {
- protected override async Task<HttpResponseMessage> SendAsyncCore(HttpRequestMessage request,
 protected override Task<HttpResponseMessage> SendAsyncCore(HttpRequestMessage request,
 CancellationToken cancellationToken)
 {
 var response = new HttpResponseMessage();
@@ -99,7 99,9 @@
 break;
 }
- return response;
 TaskCompletionSource<HttpResponseMessage> tcs = new TaskCompletionSource<HttpResponseMessage>();
 tcs.SetResult(response);
 return tcs.Task;
 }
 }
@@ -172,7 174,7 @@
 /// <summary> Gets or sets the path parameters which should be part of the initialize request. </summary>
 public string PathParameters { get; set; }
- protected override async Task<HttpResponseMessage> SendAsyncCore(HttpRequestMessage request,
 protected override Task<HttpResponseMessage> SendAsyncCore(HttpRequestMessage request,
 CancellationToken cancellationToken)
 {
 var response = new HttpResponseMessage();
@@ -206,7 208,9 @@
 break;
 }
- return response;
 TaskCompletionSource<HttpResponseMessage> tcs = new TaskCompletionSource<HttpResponseMessage>();
 tcs.SetResult(response);
 return tcs.Task;
 }
 }
@@ -1039,7 1043,7 @@
 upload.ChunkSize = -1;
 Assert.Fail();
 }
- catch (ArgumentOutOfRangeException ex)
 catch (ArgumentOutOfRangeException)
 {
 // expected
 }
@@ -1050,7 1054,7 @@
 upload.ChunkSize = MockResumableUpload.MinimumChunkSize - 1;
 Assert.Fail();
 }
- catch (ArgumentOutOfRangeException ex)
 catch (ArgumentOutOfRangeException)
 {
 // expected
 }