MacViews: Implemented Drag & Drop

ui/views/widget/native_widget_mac.mm

Index: ui/views/widget/native_widget_mac.mm
diff --git a/ui/views/widget/native_widget_mac.mm b/ui/views/widget/native_widget_mac.mm
index bfde5f6305812b5046c5e364c69df5170d68af90..a45241cb68378f70b15076055da1b62b88aef50f 100644
--- a/ui/views/widget/native_widget_mac.mm
+++ b/ui/views/widget/native_widget_mac.mm
@@ -20,6 +20,7 @@
 #include "ui/native_theme/native_theme_mac.h"
 #import "ui/views/cocoa/bridged_content_view.h"
 #import "ui/views/cocoa/bridged_native_widget.h"
+#include "ui/views/cocoa/drag_drop_client_mac.h"
 #import "ui/views/cocoa/native_widget_mac_nswindow.h"
 #import "ui/views/cocoa/views_nswindow_delegate.h"
 #include "ui/views/widget/widget_delegate.h"
@@ -507,7 +508,8 @@ void NativeWidgetMac::RunShellDrag(View* view,
                                    const gfx::Point& location,
                                    int operation,
                                    ui::DragDropTypes::DragEventSource source) {
-  NOTIMPLEMENTED();
+  bridge_->drag_drop_client()->StartDragAndDrop(view, data, location, operation,
+                                                source);
 }
 
 void NativeWidgetMac::SchedulePaintInRect(const gfx::Rect& rect) {