Remove some platform specific stuff from views.

ui/app_list/views/app_list_drag_and_drop_host.h

Index: ui/app_list/views/app_list_drag_and_drop_host.h
diff --git a/ui/app_list/views/app_list_drag_and_drop_host.h b/ui/app_list/views/app_list_drag_and_drop_host.h
deleted file mode 100644
index 7774f949699199bacec0eb80c29fb4fe8d1282d9..0000000000000000000000000000000000000000
--- a/ui/app_list/views/app_list_drag_and_drop_host.h
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright 2013 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.
-
-#ifndef UI_APP_LIST_VIEWS_APP_LIST_DRAG_AND_DROP_HOST_H_
-#define UI_APP_LIST_VIEWS_APP_LIST_DRAG_AND_DROP_HOST_H_
-
-#include <string>
-
-namespace gfx {
-class Point;
-class Vector2d;
-}  // namespace gfx
-
-namespace app_list {
-
-// This class will get used by the AppListView to drag and drop Application
-// shortcuts onto another host (the launcher).
-class ApplicationDragAndDropHost {
- public:
-  // Create an OS dependent drag proxy icon which can escape the given view.
-  // The proxy should get created using the |icon| with a magnification of
-  // |scale_factor| at a center location of |location_in_screen_coordinates.
-  // Use |replaced_view| to find the screen which is used.
-  // The |cursor_offset_from_center| is the offset from the mouse cursor to
-  // the center of the item.
-  virtual void CreateDragIconProxy(
-      const gfx::Point& location_in_screen_coordinates,
-      const gfx::ImageSkia& icon,
-      views::View* replaced_view,
-      const gfx::Vector2d& cursor_offset_from_center,
-      float scale_factor) = 0;
-
-  // Update the screen location of the Drag icon proxy.
-  virtual void UpdateDragIconProxy(
-      const gfx::Point& location_in_screen_coordinates) = 0;
-
-  // Remove the OS dependent drag proxy from the screen.
-  virtual void DestroyDragIconProxy() = 0;
-
-  // A drag operation could get started. The recipient has to return true if
-  // he wants to take it - e.g. |location_in_screen_poordinates| is over a
-  // target area. The passed |app_id| identifies the application which should
-  // get dropped.
-  virtual bool StartDrag(const std::string& app_id,
-                         const gfx::Point& location_in_screen_coordinates) = 0;
-
-  // This gets only called when the |StartDrag| function returned true and it
-  // dispatches the mouse coordinate change accordingly. When the function
-  // returns false it requests that the operation be aborted since the event
-  // location is out of bounds.
-  // Note that this function does not update the drag proxy's screen position.
-  virtual bool Drag(const gfx::Point& location_in_screen_coordinates) = 0;
-
-  // Once |StartDrag| returned true, this function is guaranteed to be called
-  // when the mouse / touch events stop. If |cancel| is set, the drag operation
-  // was aborted, otherwise the change should be kept.
-  virtual void EndDrag(bool cancel) = 0;
-};
-
-}  // namespace app_list
-
-#endif  // UI_APP_LIST_VIEWS_APP_LIST_DRAG_AND_DROP_HOST_H_