Fix warning C4267.

conversion from 'size_t' to 'int', possible loss of data.

src/base/bittorrent/torrentinfo.cpp

@@ -239,7 +239,7 @@ QVector<int> TorrentInfo::fileIndicesForPiece(int pieceIndex) const
     std::vector<libt::file_slice> files(
         nativeInfo()->map_block(pieceIndex, 0, nativeInfo()->piece_size(pieceIndex)));
     QVector<int> res;
-    res.reserve(files.size());
+    res.reserve(int(files.size()));
     std::transform(files.begin(), files.end(), std::back_inserter(res),
         [](const libt::file_slice &s) { return s.file_index; });
 

src/gui/properties/speedplotview.cpp

@@ -159,7 +159,7 @@ int SpeedPlotView::maxYValue()
         if (!m_properties[static_cast<GraphID>(id)].enable)
             continue;
 
-        for (int i = queue.size() - 1, j = 0; i >= 0 && j <= m_viewablePointsCount; --i, ++j)
+        for (int i = int(queue.size()) - 1, j = 0; i >= 0 && j <= m_viewablePointsCount; --i, ++j)
             if (queue[i].y[id] > maxYValue)
                 maxYValue = queue[i].y[id];
     }
@@ -241,7 +241,7 @@ void SpeedPlotView::paintEvent(QPaintEvent *)
 
         QVector<QPoint> points;
 
-        for (int i = queue.size() - 1, j = 0; i >= 0 && j <= m_viewablePointsCount; --i, ++j) {
+        for (int i = int(queue.size()) - 1, j = 0; i >= 0 && j <= m_viewablePointsCount; --i, ++j) {
 
             int new_x = rect.right() - j * xTickSize;
             int new_y = rect.bottom() - queue[i].y[id] * yMultiplier;