Enable AnimatedImage to not cache each frame

diff --git a/src/gui/image/qgifhandler.cpp b/src/gui/image/qgifhandler.cpp
index 03e46ab..24a8680 100644
--- a/src/gui/image/qgifhandler.cpp
+++ b/src/gui/image/qgifhandler.cpp
@@ -239,7 +239,7 @@ int QGIFFormat::decode(QImage *image, const uchar *buffer, int length,
         table[1] = &stack[(1 << max_lzw_bits) * 3];
     }

-    image->detach();
+    // image->detach();
     int bpl = image->bytesPerLine();
     unsigned char *bits = image->bits();

diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp
index 4e10b4c..a8aaa2c 100644
--- a/src/gui/image/qimage.cpp
+++ b/src/gui/image/qimage.cpp
@@ -1581,7 +1581,7 @@ uchar *QImage::bits()
 {
     if (!d)
         return 0;
-    detach();
+    // detach();

     // In case detach ran out of memory...
     if (!d)
diff --git a/src/gui/image/qpixmap_raster.cpp b/src/gui/image/qpixmap_raster.cpp
index 65e7fb0..09f1be4 100644
--- a/src/gui/image/qpixmap_raster.cpp
+++ b/src/gui/image/qpixmap_raster.cpp
@@ -193,7 +193,7 @@ void QRasterPlatformPixmap::fill(const QColor &color)
                     toFormat = QImage::Format_ARGB32_Premultiplied;

                 if (!image.isNull() && qt_depthForFormat(image.format()) == qt_depthForFormat(toFormat)) {
-                    image.detach();
+                    // image.detach();
                     image.d->format = toFormat;
                 } else {
                     image = QImage(image.width(), image.height(), toFormat);
@@ -338,7 +338,7 @@ void QRasterPlatformPixmap::createPixmapForImage(QImage &sourceImage, Qt::ImageC
         inPlace = inPlace && sourceImage.isDetached();
         image = sourceImage;
         if (!inPlace)
-            image.detach();
+            // image.detach();
         if (image.d)
             image.d->format = QImage::Format_RGB32;
     } else if (inPlace && sourceImage.d->convertInPlace(format, flags)) {

diff --git a/src/quick/items/qquickanimatedimage.cpp b/src/quick/items/qquickanimatedimage.cpp
index 342394a..baababc 100644
--- a/src/quick/items/qquickanimatedimage.cpp
+++ b/src/quick/items/qquickanimatedimage.cpp
@@ -365,7 +365,7 @@ void QQuickAnimatedImage::movieRequestFinished()
             this, SLOT(playingStatusChanged()));
     connect(d->_movie, SIGNAL(frameChanged(int)),
             this, SLOT(movieUpdate()));
-    d->_movie->setCacheMode(QMovie::CacheAll);
+    d->_movie->setCacheMode(QMovie::CacheNone);

     d->status = Ready;
     emit statusChanged(d->status);