Fix the crash that could occur when the window is closed while web contents drag is in progress.

content/test/test_web_contents_view.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/test/test_web_contents_view.h"
 
 namespace content {
 
 TestWebContentsView::TestWebContentsView() {
 }
@@ skipping 72 matching lines @@
 
 void TestWebContentsView::SetInitialFocus() {
 }
 
 void TestWebContentsView::StoreFocus() {
 }
 
 void TestWebContentsView::RestoreFocus() {
 }
 
-bool TestWebContentsView::IsDoingDrag() const {
-  return false;
-}
-
-void TestWebContentsView::CancelDragAndCloseTab() {
-}
-
 WebDropData* TestWebContentsView::GetDropData() const {
   return NULL;
 }
 
 bool TestWebContentsView::IsEventTracking() const {
   return false;
 }
 
 void TestWebContentsView::CloseTabAfterEventTracking() {
 }
 
 gfx::Rect TestWebContentsView::GetViewBounds() const {
   return gfx::Rect();
 }
 
 }  // namespace content