QtGui: make some constructors explicit

This is a semi-automatic search, so I'm
reasonably sure that all the exported ones
have been caught.

Change-Id: I5b122db2498dbb2aee50c7ad95c67e708aade45b
Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gui/kernel/qplatformsharedgraphicscache_qpa.h b/src/gui/kernel/qplatformsharedgraphicscache_qpa.h
index d59cd7c3c8..f8ee201d85 100644
--- a/src/gui/kernel/qplatformsharedgraphicscache_qpa.h
+++ b/src/gui/kernel/qplatformsharedgraphicscache_qpa.h
@@ -65,7 +65,7 @@ public:
         OpenGLTexture
     };
 
-    QPlatformSharedGraphicsCache(QObject *parent = 0) : QObject(parent) {}
+    explicit QPlatformSharedGraphicsCache(QObject *parent = 0) : QObject(parent) {}
 
     Q_INVOKABLE virtual void ensureCacheInitialized(const QByteArray &cacheId, BufferType bufferType,
                                                     PixelFormat pixelFormat) = 0;