Drag-and-drop: updateDragCursor

content/browser/browser_plugin/browser_plugin_embedder.cc

 // 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.
 
 #include "content/browser/browser_plugin/browser_plugin_embedder.h"
 
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/common/browser_plugin/browser_plugin_messages.h"
@@ skipping 98 matching lines @@
   // Not handled => Iterate over all guests.
   return false;
 }
 
 void BrowserPluginEmbedder::DidSendScreenRects() {
   GetBrowserPluginGuestManager()->ForEachGuest(
       web_contents(),
       base::Bind(&BrowserPluginEmbedder::DidSendScreenRectsCallback));
 }
 
-bool BrowserPluginEmbedder::OnMessageReceived(const IPC::Message& message) {
-  return OnMessageReceived(message, nullptr);
-}
-
 bool BrowserPluginEmbedder::OnMessageReceived(
     const IPC::Message& message,
     RenderFrameHost* render_frame_host) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP_WITH_PARAM(BrowserPluginEmbedder, message,
                                    render_frame_host)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_Attach, OnAttach)
-    IPC_MESSAGE_HANDLER_GENERIC(DragHostMsg_UpdateDragCursor,
-                                OnUpdateDragCursor(&handled));
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void BrowserPluginEmbedder::DragSourceEndedAt(int client_x, int client_y,
     int screen_x, int screen_y, blink::WebDragOperation operation) {
   if (guest_started_drag_) {
     gfx::Point guest_offset =
         guest_started_drag_->GetScreenCoordinates(gfx::Point());
     guest_started_drag_->DragSourceEndedAt(client_x - guest_offset.x(),
         client_y - guest_offset.y(), screen_x, screen_y, operation);
   }
   ClearGuestDragStateIfApplicable();
 }
 
 void BrowserPluginEmbedder::SystemDragEnded() {
   // When the embedder's drag/drop operation ends, we need to pass the message
   // to the guest that initiated the drag/drop operation. This will ensure that
   // the guest's RVH state is reset properly.
   if (guest_started_drag_)
     guest_started_drag_->EmbedderSystemDragEnded();
 
   guest_dragging_over_.reset();
   ClearGuestDragStateIfApplicable();
 }
 
-void BrowserPluginEmbedder::OnUpdateDragCursor(bool* handled) {
-  *handled = !!guest_dragging_over_;
+bool BrowserPluginEmbedder::OnUpdateDragCursor() {
+  return !!guest_dragging_over_;
 }
 
 void BrowserPluginEmbedder::OnAttach(
     RenderFrameHost* render_frame_host,
     int browser_plugin_instance_id,
     const BrowserPluginHostMsg_Attach_Params& params) {
   WebContents* guest_web_contents =
       GetBrowserPluginGuestManager()->GetGuestByInstanceID(
           render_frame_host->GetProcess()->GetID(),
           browser_plugin_instance_id);
@@ skipping 92 matching lines @@
           ->GetBrowserPluginGuest()
           ->HandleStopFindingForEmbedder(action)) {
     // There can only ever currently be one browser plugin that handles find so
     // we can break the iteration at this point.
     return true;
   }
   return false;
 }
 
 }  // namespace content