Rework the way Widget::Init works:

chrome/browser/ui/views/native_constrained_window_win.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 "chrome/browser/ui/views/constrained_window_views.h"
 
 #include "views/window/window_win.h"
 
 namespace {
 bool IsNonClientHitTestCode(UINT hittest) {
   return hittest != HTCLIENT && hittest != HTNOWHERE && hittest != HTCLOSE;
 }
 }
 
 class NativeConstrainedWindowWin : public NativeConstrainedWindow,
                                    public views::WindowWin {
  public:
   NativeConstrainedWindowWin(NativeConstrainedWindowDelegate* delegate,
                              views::WindowDelegate* window_delegate)
       : WindowWin(window_delegate),
         delegate_(delegate) {
-    views::Widget::CreateParams params(
-        views::Widget::CreateParams::TYPE_WINDOW);
-    params.child = true;
-    SetCreateParams(params);
   }
 
   virtual ~NativeConstrainedWindowWin() {
   }
 
  private:
   // Overridden from NativeConstrainedWindow:
   virtual void InitNativeConstrainedWindow(gfx::NativeView parent) OVERRIDE {
-    WindowWin::Init(parent, gfx::Rect());
+    views::Widget::CreateParams params(
+        views::Widget::CreateParams::TYPE_WINDOW);
+    params.child = true;
+    params.parent = parent;
+    GetWidget()->Init(params);
   }
   virtual views::NativeWindow* AsNativeWindow() OVERRIDE {
     return this;
   }
 
   // Overridden from views::WindowWin:
   virtual void OnFinalMessage(HWND window) OVERRIDE {
     delegate_->OnNativeConstrainedWindowDestroyed();
     WindowWin::OnFinalMessage(window);
   }
@@ skipping 17 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeConstrainedWindow, public:
 
 // static
 NativeConstrainedWindow* NativeConstrainedWindow::CreateNativeConstrainedWindow(
     NativeConstrainedWindowDelegate* delegate,
     views::WindowDelegate* window_delegate) {
   return new NativeConstrainedWindowWin(delegate, window_delegate);
 }