Duplicate popup window should have same size and scroll ...

chrome/browser/browser.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 <windows.h>
 #include <shellapi.h>
 
 #include "chrome/browser/browser.h"
 
 #include "base/command_line.h"
@@ skipping 1313 matching lines @@
     tabstrip_model_.AddTabContents(new_contents, index + 1,
                                    PageTransition::LINK, true);
   } else {
     Browser* browser = NULL;
     if (type_ == TYPE_APP) {
       browser = Browser::CreateForApp(app_name_, profile_);
     } else if (type_ == TYPE_POPUP) {
       browser = Browser::CreateForPopup(profile_);
     }
 
+    // Preserve the size of the original window. The new window has already
+    // been given an offset by the OS, so we shouldn't copy the old bounds.
+    BrowserWindow* new_window = browser->window();
+    new_window->SetBounds(gfx::Rect(new_window->GetNormalBounds().origin(),
+                          window()->GetNormalBounds().size()));
+
     // We need to show the browser now. Otherwise ContainerWin assumes the
     // TabContents is invisible and won't size it.
     browser->window()->Show();
 
     // The page transition below is only for the purpose of inserting the tab.
     new_contents = browser->AddTabWithNavigationController(
         contents->controller()->Clone(),
         PageTransition::LINK);
   }
 
@@ skipping 1055 matching lines @@
 
   // We need to register the window position pref.
   std::wstring window_pref(prefs::kBrowserWindowPlacement);
   window_pref.append(L"_");
   window_pref.append(app_name);
   PrefService* prefs = g_browser_process->local_state();
   DCHECK(prefs);
 
   prefs->RegisterDictionaryPref(window_pref.c_str());
 }