Move DragDownload() out of download_util.h

chrome/browser/ui/cocoa/download/download_util_mac.mm

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-//
-// Download utility implementation for Mac OS X.
 
 #include "chrome/browser/ui/cocoa/download/download_util_mac.h"
 
-#include "base/logging.h"
+#include "base/files/file_path.h"
 #include "base/strings/sys_string_conversions.h"
-#include "content/public/browser/download_item.h"
-#include "content/public/browser/download_manager.h"
-#include "ui/gfx/image/image.h"
-#include "ui/gfx/native_widget_types.h"
-
-using content::DownloadItem;
 
 namespace download_util {
 
 void AddFileToPasteboard(NSPasteboard* pasteboard, const base::FilePath& path) {
   // Write information about the file being dragged to the pasteboard.
   NSString* file = base::SysUTF8ToNSString(path.value());
   NSArray* fileList = [NSArray arrayWithObject:file];
   [pasteboard declareTypes:[NSArray arrayWithObject:NSFilenamesPboardType]
                      owner:nil];
   [pasteboard setPropertyList:fileList forType:NSFilenamesPboardType];
 }
 
-void DragDownload(const DownloadItem* download,
-                  gfx::Image* icon,
-                  gfx::NativeView view) {
-  DCHECK_EQ(DownloadItem::COMPLETE, download->GetState());
-  NSPasteboard* pasteboard = [NSPasteboard pasteboardWithName:NSDragPboard];
-  AddFileToPasteboard(pasteboard, download->GetTargetFilePath());
-
-  // Synthesize a drag event, since we don't have access to the actual event
-  // that initiated a drag (possibly consumed by the Web UI, for example).
-  NSPoint position = [[view window] mouseLocationOutsideOfEventStream];
-  NSTimeInterval eventTime = [[NSApp currentEvent] timestamp];
-  NSEvent* dragEvent = [NSEvent mouseEventWithType:NSLeftMouseDragged
-                                          location:position
-                                     modifierFlags:NSLeftMouseDraggedMask
-                                         timestamp:eventTime
-                                      windowNumber:[[view window] windowNumber]
-                                           context:nil
-                                       eventNumber:0
-                                        clickCount:1
-                                          pressure:1.0];
-
-  // Run the drag operation.
-  [[view window] dragImage:icon->ToNSImage()
-                        at:position
-                    offset:NSZeroSize
-                     event:dragEvent
-                pasteboard:pasteboard
-                    source:view
-                 slideBack:YES];
-}
-
 }  // namespace download_util