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

content/browser/browser_plugin/browser_plugin_embedder_helper.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.
 
 #ifndef CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_EMBEDDER_HELPER_H_
 #define CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_EMBEDDER_HELPER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "content/public/browser/render_view_host_observer.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebDragStatus.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h"
 
 namespace IPC {
 class Message;
 class SyncMessage;
 }
 
 namespace gfx {
+class Point;
 class Size;
 }
 
 struct BrowserPluginHostMsg_ResizeGuest_Params;
+struct WebDropData;
 
 namespace content {
 
 class BrowserPluginEmbedder;
 class RenderViewHost;
 
 // Helper for browser plugin embedder.
 //
 // A lot of messages coming from guests need to know the guest's RenderViewHost.
 // BrowserPluginEmbedderHelper handles BrowserPluginHostMsg messages and
@@ skipping 28 matching lines @@
                      const BrowserPluginHostMsg_ResizeGuest_Params& params);
   void OnUpdateRectACK(int instance_id, int message_id, const gfx::Size& size);
   void OnHandleInputEvent(const IPC::SyncMessage& message, bool* handled);
   void OnSetFocus(int instance_id, bool focused);
   void OnPluginDestroyed(int instance_id);
   void OnGo(int instance_id, int relative_index);
   void OnStop(int instance_id);
   void OnReload(int instance_id);
   void OnTerminateGuest(int instance_id);
   void OnSetGuestVisibility(int instance_id, bool visible);
+  void OnDragStatusUpdate(int instance_id,
+                          WebKit::WebDragStatus drag_status,
+                          const WebDropData& drop_data,
+                          WebKit::WebDragOperationsMask drag_mask,
+                          const gfx::Point& location);
 
   BrowserPluginEmbedder* embedder_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginEmbedderHelper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_EMBEDDER_HELPER_H_