Fixed drag and drop into and out of Browser Plugin.

content/browser/browser_plugin/browser_plugin_guest.h

Index: content/browser/browser_plugin/browser_plugin_guest.h
diff --git a/content/browser/browser_plugin/browser_plugin_guest.h b/content/browser/browser_plugin/browser_plugin_guest.h
index 5ab1457fd3661441a0bb6ea38e92e7665ff858ae..12268414a4703d619ce4c6eb7dac7b3ca0d2a848 100644
--- a/content/browser/browser_plugin/browser_plugin_guest.h
+++ b/content/browser/browser_plugin/browser_plugin_guest.h
@@ -57,6 +57,7 @@ namespace content {
 
 class BrowserPluginHostFactory;
 class BrowserPluginEmbedder;
+class DragEventSourceInfo;
 class RenderProcessHost;
 
 // A browser plugin guest provides functionality for WebContents to operate in
@@ -169,6 +170,10 @@ class CONTENT_EXPORT BrowserPluginGuest : public NotificationObserver,
   // within an embedder.
   int instance_id() const { return instance_id_; }
 
+  bool dragging() { return dragging_; }
+
+  bool drag_over() { return drag_over_; }
+
  private:
   friend class TestBrowserPluginGuest;
 
@@ -259,6 +264,7 @@ class CONTENT_EXPORT BrowserPluginGuest : public NotificationObserver,
                       int* route_id,
                       int* surface_id,
                       int64* cloned_session_storage_namespace_id);
+  void OnDragStopped();
   void OnHandleInputEventAck(
       WebKit::WebInputEvent::Type event_type,
       InputEventAckState ack_result);
@@ -272,7 +278,6 @@ class CONTENT_EXPORT BrowserPluginGuest : public NotificationObserver,
   void OnShowWidget(int route_id, const gfx::Rect& initial_pos);
   // Overriden in tests.
   virtual void OnTakeFocus(bool reverse);
-  void OnUpdateDragCursor(WebKit::WebDragOperation operation);
   void OnUpdateFrameName(int frame_id,
                          bool is_top_level,
                          const std::string& name);
@@ -297,6 +302,9 @@ class CONTENT_EXPORT BrowserPluginGuest : public NotificationObserver,
   base::TimeDelta guest_hang_timeout_;
   bool focused_;
   bool visible_;
+  // True if this guest initiated a drag n drop event that is currently active.
+  bool dragging_;
+  bool drag_over_;
   std::string name_;
   bool auto_size_enabled_;
   gfx::Size max_auto_size_;