Revert r9953 since it caused regressions like:

chrome/views/window.cc

 // Copyright (c) 2006-2008 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/views/window.h"
 
 #include <shellapi.h>
 
 #include "base/win_util.h"
 #include "chrome/app/chrome_dll_resource.h"
@@ skipping 1109 matching lines @@
 
 void Window::ProcessNCMousePress(const CPoint& point, int flags) {
   CPoint temp = point;
   MapWindowPoints(HWND_DESKTOP, GetHWND(), &temp, 1);
   UINT message_flags = 0;
   if ((GetKeyState(VK_CONTROL) & 0x80) == 0x80)
     message_flags |= MK_CONTROL;
   if ((GetKeyState(VK_SHIFT) & 0x80) == 0x80)
     message_flags |= MK_SHIFT;
   message_flags |= flags;
-  ProcessMousePressed(temp, message_flags, false, false);
+  ProcessMousePressed(temp, message_flags, false);
 }
 
 LRESULT Window::CallDefaultNCActivateHandler(BOOL active) {
   // The DefWindowProc handling for WM_NCACTIVATE renders the classic-look
   // window title bar directly, so we need to use a redraw lock here to prevent
   // it from doing so.
   ScopedRedrawLock lock(this);
   return DefWindowProc(GetHWND(), WM_NCACTIVATE, active, 0);
 }
 
 void Window::InitClass() {
   static bool initialized = false;
   if (!initialized) {
     resize_cursors_[RC_NORMAL] = LoadCursor(NULL, IDC_ARROW);
     resize_cursors_[RC_VERTICAL] = LoadCursor(NULL, IDC_SIZENS);
     resize_cursors_[RC_HORIZONTAL] = LoadCursor(NULL, IDC_SIZEWE);
     resize_cursors_[RC_NESW] = LoadCursor(NULL, IDC_SIZENESW);
     resize_cursors_[RC_NWSE] = LoadCursor(NULL, IDC_SIZENWSE);
     initialized = true;
   }
 }
 
 }  // namespace views