winrt platform plugin: Fix clang warnings

Fixed warnings:
  - missing override specifier
  - 0 as nullptr constant
  - implicit change of signedness
  - non portable path to header file

Change-Id: I6977bc561176ac7804ac01325b84c15ba849bbf2
Reviewed-by: Miguel Costa <miguel.costa@qt.io>
Reviewed-by: Andre de la Rocha <andre.rocha@qt.io>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 4 insertions, 6 deletions

diff --git a/src/plugins/platforms/winrt/qwinrtservices.cpp b/src/plugins/platforms/winrt/qwinrtservices.cpp
index 05620ca4c8..b27c408f40 100644
--- a/src/plugins/platforms/winrt/qwinrtservices.cpp
+++ b/src/plugins/platforms/winrt/qwinrtservices.cpp
@@ -83,17 +83,14 @@ QWinRTServices::QWinRTServices()
     Q_ASSERT_X(SUCCEEDED(hr), Q_FUNC_INFO, qPrintable(qt_error_string(hr)));
 }
 
-QWinRTServices::~QWinRTServices()
-{
-}
-
 bool QWinRTServices::openUrl(const QUrl &url)
 {
     Q_D(QWinRTServices);
 
     ComPtr<IUriRuntimeClass> uri;
     QString urlString = url.toString();
-    HStringReference uriString(reinterpret_cast<LPCWSTR>(urlString.utf16()), urlString.length());
+    HStringReference uriString(reinterpret_cast<LPCWSTR>(urlString.utf16()),
+                               uint(urlString.length()));
     HRESULT hr = d->uriFactory->CreateUri(uriString.Get(), &uri);
     RETURN_FALSE_IF_FAILED("Failed to create URI from QUrl.");
 
@@ -122,7 +119,8 @@ bool QWinRTServices::openDocument(const QUrl &url)
     }
     if (!file) {
         const QString pathString = QDir::toNativeSeparators(url.toLocalFile());
-        HStringReference path(reinterpret_cast<LPCWSTR>(pathString.utf16()), pathString.length());
+        HStringReference path(reinterpret_cast<LPCWSTR>(pathString.utf16()),
+                              uint(pathString.length()));
         ComPtr<IAsyncOperation<StorageFile *>> op;
         hr = d->fileFactory->GetFileFromPathAsync(path.Get(), &op);
         RETURN_FALSE_IF_FAILED("Failed to initialize file URI.");