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

content/browser/browser_plugin/browser_plugin_embedder.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.
 
 // A BrowserPluginEmbedder has a list of guests it manages.
 // In the beginning when a renderer sees one or more guests (BrowserPlugin
 // instance(s)) and there is a request to navigate to them, the WebContents for
 // that renderer creates a BrowserPluginEmbedder for itself. The
 // BrowserPluginEmbedder, in turn, manages a set of BrowserPluginGuests -- one
 // BrowserPluginGuest for each guest in the embedding WebContents. Note that
 // each of these BrowserPluginGuest objects has its own WebContents.
 // BrowserPluginEmbedder routes any messages directed to a guest from the
 // renderer (BrowserPlugin) to the appropriate guest (identified by the guest's
 // |instance_id|).
 //
 // BrowserPluginEmbedder is responsible for cleaning up the guests when the
 // embedder frame navigates away to a different page or deletes the guests from
 // the existing page.
 
 #ifndef CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_EMBEDDER_H_
 #define CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_EMBEDDER_H_
 
 #include <map>
 
 #include "base/compiler_specific.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_observer.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebDragStatus.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h"
 #include "ui/surface/transport_dib.h"
+#include "webkit/glue/webdropdata.h"
 
 class WebContentsImpl;
 struct BrowserPluginHostMsg_ResizeGuest_Params;
 
 namespace WebKit {
 class WebInputEvent;
 }
 
 namespace gfx {
+class Point;
 class Rect;
 class Size;
 }
 
 namespace content {
 
 class BrowserPluginGuest;
 class BrowserPluginHostFactory;
 
 // A browser plugin embedder provides functionality for WebContents to operate
@@ skipping 51 matching lines @@
   // Handles input events sent from the BrowserPlugin (embedder's renderer
   // process) by passing them to appropriate guest's input handler.
   void HandleInputEvent(int instance_id,
                         RenderViewHost* render_view_host,
                         const gfx::Rect& guest_rect,
                         const WebKit::WebInputEvent& event,
                         IPC::Message* reply_message);
   void PluginDestroyed(int instance_id);
   void SetGuestVisibility(int instance_id,
                           bool guest_visible);
+  void DragStatusUpdate(int instance_id,
+                        WebKit::WebDragStatus drag_status,
+                        const WebDropData& drop_data,
+                        WebKit::WebDragOperationsMask drag_mask,
+                        const gfx::Point& location);
 
   // Overrides factory for testing. Default (NULL) value indicates regular
   // (non-test) environment.
   static void set_factory_for_testing(BrowserPluginHostFactory* factory) {
     factory_ = factory;
   }
 
  private:
   friend class TestBrowserPluginEmbedder;
 
@@ skipping 27 matching lines @@
   ContainerInstanceMap guest_web_contents_by_instance_id_;
   RenderViewHost* render_view_host_;
   bool visible_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginEmbedder);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_EMBEDDER_H_