Make the cancelling of drag and drop match Safari for Windows.

chrome/browser/renderer_host/render_view_host.cc

 // Copyright (c) 2009 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 "chrome/browser/renderer_host/render_view_host.h"
 
 #include <string>
 #include <vector>
 
 #include "app/resource_bundle.h"
@@ skipping 561 matching lines @@
     modal_dialog_event_->Reset();
 
   ViewHostMsg_ShowModalHTMLDialog::WriteReplyParams(reply_msg, json_retval);
   Send(reply_msg);
 }
 
 void RenderViewHost::CopyImageAt(int x, int y) {
   Send(new ViewMsg_CopyImageAt(routing_id(), x, y));
 }
 
+void RenderViewHost::DragSourceCancelledAt(
+    int client_x, int client_y, int screen_x, int screen_y) {
+  Send(new ViewMsg_DragSourceEndedOrMoved(
+      routing_id(),
+      gfx::Point(client_x, client_y),
+      gfx::Point(screen_x, screen_y),
+      true, true));
+}
+
 void RenderViewHost::DragSourceEndedAt(
     int client_x, int client_y, int screen_x, int screen_y) {
   Send(new ViewMsg_DragSourceEndedOrMoved(
       routing_id(),
       gfx::Point(client_x, client_y),
       gfx::Point(screen_x, screen_y),
-      true));
+      true, false));
 }
 
 void RenderViewHost::DragSourceMovedTo(
     int client_x, int client_y, int screen_x, int screen_y) {
   Send(new ViewMsg_DragSourceEndedOrMoved(
       routing_id(),
       gfx::Point(client_x, client_y),
       gfx::Point(screen_x, screen_y),
-      false));
+      false, false));
 }
 
 void RenderViewHost::DragSourceSystemDragEnded() {
   Send(new ViewMsg_DragSourceSystemDragEnded(routing_id()));
 }
 
 void RenderViewHost::AllowBindings(int bindings_flags) {
   DCHECK(!renderer_initialized_);
   enabled_bindings_ |= bindings_flags;
 }
@@ skipping 831 matching lines @@
   BrowserAccessibilityManager::GetInstance()->
       ChangeAccessibilityFocus(acc_obj_id, process()->pid(), routing_id());
 #else
   // TODO(port): accessibility not yet implemented. See http://crbug.com/8288.
 #endif
 }
 
 void RenderViewHost::OnCSSInserted() {
   delegate_->DidInsertCSS();
 }