Gets the drop arrow to show when dragging URLs over the tab strip....

chrome/browser/views/tabs/dragged_tab_controller.cc

 // Copyright (c) 2006-2008 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.
 
 #include "chrome/browser/views/tabs/dragged_tab_controller.h"
 
 #include <math.h>
 #include <set>
 
 #include "app/animation.h"
@@ skipping 11 matching lines @@
 #include "chrome/browser/views/tabs/tab_strip.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/notification_service.h"
 #include "grit/theme_resources.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "views/event.h"
 #include "views/widget/root_view.h"
 #include "views/widget/widget.h"
 #include "views/window/window.h"
 
+#if defined(OS_WIN)
+#include "views/widget/widget_win.h"
+#endif
+
 static const int kHorizontalMoveThreshold = 16; // pixels
 
 // Threshold for pinned tabs.
 static const int kHorizontalPinnedMoveThreshold = 4;  // pixels
 
 // Amount, in pixels, from the edge of the tab strip that causes a non-pinned
 // tab to be pinned. See description of pin_timer_ for details.
 static const int kHorizontalPinTabOffset = 16;
 
 // Delay, in ms, between when the user drags a tab to the edge of the tab strip
@@ skipping 1344 matching lines @@
 
     // The previous call made the window appear on top of the dragged window,
     // move the dragged window to the front.
     SetWindowPos(view_->GetWidget()->GetNativeView(), HWND_TOP, 0, 0, 0, 0,
                  SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
 #else
     NOTIMPLEMENTED();
 #endif
   }
 }