QAbstractFileEngine: make setFileTime not a pure virtual

Most engines just had to override the virtual to return false. So do it
in the base class.

Change-Id: I8d96dea9955d4c749b99fffd14cd738a48aa818c
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>

src/corelib/io/qabstractfileengine.cpp

@@ -726,10 +726,10 @@ QString QAbstractFileEngine::owner(FileOwner owner) const
     return QString();
 }
 
-/*!
-    \fn bool QAbstractFileEngine::setFileTime(const QDateTime &newDate, FileTime time)
 
+/*!
     \since 5.10
+
     Sets the file \a time to \a newDate, returning true if successful;
     otherwise returns false.
 
@@ -737,6 +737,12 @@ QString QAbstractFileEngine::owner(FileOwner owner) const
 
     \sa fileTime()
 */
+bool QAbstractFileEngine::setFileTime(const QDateTime &newDate, FileTime time)
+{
+    Q_UNUSED(newDate);
+    Q_UNUSED(time);
+    return false;
+}
 
 /*!
     If \a time is \c CreationTime, return when the file was created.

src/corelib/io/qabstractfileengine_p.h

@@ -144,7 +144,7 @@ public:
     virtual QString fileName(FileName file=DefaultName) const;
     virtual uint ownerId(FileOwner) const;
     virtual QString owner(FileOwner) const;
-    virtual bool setFileTime(const QDateTime &newDate, FileTime time) = 0;
+    virtual bool setFileTime(const QDateTime &newDate, FileTime time);
     virtual QDateTime fileTime(FileTime time) const;
     virtual void setFileName(const QString &file);
     virtual int handle() const;

src/corelib/io/qresource.cpp

@@ -1457,13 +1457,6 @@ QString QResourceFileEngine::owner(FileOwner) const
     return QString();
 }
 
-bool QResourceFileEngine::setFileTime(const QDateTime &newDate, FileTime time)
-{
-    Q_UNUSED(newDate);
-    Q_UNUSED(time);
-    return false;
-}
-
 QDateTime QResourceFileEngine::fileTime(FileTime time) const
 {
     Q_D(const QResourceFileEngine);

src/corelib/io/qresource_p.h

@@ -103,7 +103,6 @@ public:
     virtual uint ownerId(FileOwner) const Q_DECL_OVERRIDE;
     virtual QString owner(FileOwner) const Q_DECL_OVERRIDE;
 
-    virtual bool setFileTime(const QDateTime &newDate, FileTime time) Q_DECL_OVERRIDE;
     virtual QDateTime fileTime(FileTime time) const Q_DECL_OVERRIDE;
 
     virtual Iterator *beginEntryList(QDir::Filters filters, const QStringList &filterNames) Q_DECL_OVERRIDE;

src/plugins/platforms/android/qandroidassetsfileenginehandler.cpp

@@ -206,13 +206,6 @@ public:
         return type & flags;
     }
 
-    bool setFileTime(const QDateTime &newDate, FileTime time) override
-    {
-        Q_UNUSED(newDate);
-        Q_UNUSED(time);
-        return false;
-    }
-
     QString fileName(FileName file = DefaultName) const override
     {
         int pos;

src/plugins/platforms/ios/optional/nsphotolibrarysupport/qiosfileengineassetslibrary.h

@@ -61,7 +61,6 @@ public:
     qint64 read(char *data, qint64 maxlen) override;
     qint64 pos() const override;
     bool seek(qint64 pos) override;
-    bool setFileTime(const QDateTime &newDate, FileTime time) override;
     QString fileName(FileName file) const override;
     void setFileName(const QString &file) override;
     QStringList entryList(QDir::Filters filters, const QStringList &filterNames) const override;

src/plugins/platforms/ios/optional/nsphotolibrarysupport/qiosfileengineassetslibrary.mm

@@ -435,13 +435,6 @@ bool QIOSFileEngineAssetsLibrary::seek(qint64 pos)
     return true;
 }
 
-bool QIOSFileEngineAssetsLibrary::setFileTime(const QDateTime &newDate, FileTime time)
-{
-    Q_UNUSED(newDate);
-    Q_UNUSED(time);
-    return false;
-}
-
 QString QIOSFileEngineAssetsLibrary::fileName(FileName file) const
 {
     Q_UNUSED(file);

src/plugins/platforms/winrt/qwinrtfileengine.cpp

@@ -440,14 +440,6 @@ QDateTime QWinRTFileEngine::fileTime(FileTime type) const
     return QDateTime(date, time);
 }
 
-bool QWinRTFileEngine::setFileTime(const QDateTime &newDate, FileTime time)
-{
-    Q_UNUSED(newDate);
-    Q_UNUSED(time);
-    Q_UNIMPLEMENTED();
-    return false;
-}
-
 qint64 QWinRTFileEngine::read(char *data, qint64 maxlen)
 {
     Q_D(QWinRTFileEngine);

src/plugins/platforms/winrt/qwinrtfileengine.h

@@ -89,7 +89,6 @@ public:
     bool setPermissions(uint perms) override;
     QString fileName(FileName type=DefaultName) const override;
     QDateTime fileTime(FileTime type) const override;
-    bool setFileTime(const QDateTime &newDate, FileTime time) override;
 
     qint64 read(char *data, qint64 maxlen) override;
     qint64 write(const char *data, qint64 len) override;