Remove identity from dragTargetDragEnter() call sites.

content/renderer/render_view.cc

 // Copyright (c) 2011 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/renderer/render_view.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
@@ skipping 4210 matching lines @@
 void RenderView::OnReservePageIDRange(int size_of_range) {
   next_page_id_ += size_of_range + 1;
 }
 
 void RenderView::OnDragTargetDragEnter(const WebDropData& drop_data,
                                        const gfx::Point& client_point,
                                        const gfx::Point& screen_point,
                                        WebDragOperationsMask ops) {
   WebDragOperation operation = webview()->dragTargetDragEnter(
       drop_data.ToDragData(),
-      0,  // drag identity, unused
       client_point,
       screen_point,
       ops);
 
   Send(new DragHostMsg_UpdateDragCursor(routing_id_, operation));
 }
 
 void RenderView::OnDragTargetDragOver(const gfx::Point& client_point,
                                       const gfx::Point& screen_point,
                                       WebDragOperationsMask ops) {
@@ skipping 915 matching lines @@
     const webkit_glue::CustomContextMenuContext& custom_context) {
   if (custom_context.is_pepper_menu)
     pepper_delegate_.OnContextMenuClosed(custom_context);
   else
     context_menu_node_.reset();
 }
 
 void RenderView::OnNetworkStateChanged(bool online) {
   WebNetworkStateNotifier::setOnLine(online);
 }