DolphinView: rename copySelectedItems to copySelectedItemsToClipboard

This makes it explicit that this is just a copy to clipboard, so that
we can use the name for an actual KIO::copy().

src/dolphinmainwindow.cpp

@@ -659,7 +659,7 @@ void DolphinMainWindow::cut()
 
 void DolphinMainWindow::copy()
 {
-    m_activeViewContainer->view()->copySelectedItems();
+    m_activeViewContainer->view()->copySelectedItemsToClipboard();
 }
 
 void DolphinMainWindow::paste()

src/dolphinpart_ext.cpp

@@ -48,7 +48,7 @@ void DolphinPartBrowserExtension::cut()
 
 void DolphinPartBrowserExtension::copy()
 {
-    m_part->view()->copySelectedItems();
+    m_part->view()->copySelectedItemsToClipboard();
 }
 
 void DolphinPartBrowserExtension::paste()

src/views/dolphinview.cpp

@@ -686,7 +686,7 @@ void DolphinView::cutSelectedItems()
     QApplication::clipboard()->setMimeData(mimeData);
 }
 
-void DolphinView::copySelectedItems()
+void DolphinView::copySelectedItemsToClipboard()
 {
     QMimeData* mimeData = selectionMimeData();
     QApplication::clipboard()->setMimeData(mimeData);

src/views/dolphinview.h

@@ -368,7 +368,7 @@ public slots:
     void cutSelectedItems();
 
     /** Copies all selected items to the clipboard. */
-    void copySelectedItems();
+    void copySelectedItemsToClipboard();
 
     /** Pastes the clipboard data to this view. */
     void paste();