browser-plugin: Allow accepting drag-n-drop events.

content/common/drag_messages.h

 // Copyright (c) 2012 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.
 
 // IPC messages for drag and drop.
 // Multiply-included message file, hence no include guard.
 
 #include "content/public/common/common_param_traits.h"
 #include "ipc/ipc_message_macros.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h"
 #include "ui/gfx/point.h"
 #include "webkit/glue/webdropdata.h"
 
 #define IPC_MESSAGE_START DragMsgStart
 
-IPC_ENUM_TRAITS(WebKit::WebDragOperation)
-
-IPC_STRUCT_TRAITS_BEGIN(WebDropData::FileInfo)
-  IPC_STRUCT_TRAITS_MEMBER(path)
-  IPC_STRUCT_TRAITS_MEMBER(display_name)
-IPC_STRUCT_TRAITS_END()
-
-IPC_STRUCT_TRAITS_BEGIN(WebDropData)
-  IPC_STRUCT_TRAITS_MEMBER(url)
-  IPC_STRUCT_TRAITS_MEMBER(url_title)
-  IPC_STRUCT_TRAITS_MEMBER(download_metadata)
-  IPC_STRUCT_TRAITS_MEMBER(referrer_policy)
-  IPC_STRUCT_TRAITS_MEMBER(filenames)
-  IPC_STRUCT_TRAITS_MEMBER(filesystem_id)
-  IPC_STRUCT_TRAITS_MEMBER(text)
-  IPC_STRUCT_TRAITS_MEMBER(html)
-  IPC_STRUCT_TRAITS_MEMBER(html_base_url)
-  IPC_STRUCT_TRAITS_MEMBER(file_description_filename)
-  IPC_STRUCT_TRAITS_MEMBER(file_contents)
-  IPC_STRUCT_TRAITS_MEMBER(custom_data)
-IPC_STRUCT_TRAITS_END()
-
 // Messages sent from the browser to the renderer.
 
 IPC_MESSAGE_ROUTED5(DragMsg_TargetDragEnter,
                     WebDropData /* drop_data */,
                     gfx::Point /* client_pt */,
                     gfx::Point /* screen_pt */,
                     WebKit::WebDragOperationsMask /* ops_allowed */,
                     int /* key_modifiers */)
 
 IPC_MESSAGE_ROUTED4(DragMsg_TargetDragOver,
@@ skipping 32 matching lines @@
                     SkBitmap /* image */,
                     gfx::Point /* image_offset */)
 
 // The page wants to update the mouse cursor during a drag & drop operation.
 // |is_drop_target| is true if the mouse is over a valid drop target.
 IPC_MESSAGE_ROUTED1(DragHostMsg_UpdateDragCursor,
                     WebKit::WebDragOperation /* drag_operation */)
 
 // Notifies the host that the renderer finished a drop operation.
 IPC_MESSAGE_ROUTED0(DragHostMsg_TargetDrop_ACK)