Remove TYPE_EXTENSION_APP. Experiment failed.

chrome/browser/views/frame/browser_frame_win.cc

 // Copyright (c) 2010 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/views/frame/browser_frame_win.h"
 
 #include <dwmapi.h>
 #include <shellapi.h>
 
 #include <set>
@@ skipping 93 matching lines @@
   // This is implemented for a different interface than GetThemeProvider is,
   // but they mean the same things.
   return GetThemeProvider();
 }
 
 bool BrowserFrameWin::AlwaysUseNativeFrame() const {
   // App panel windows draw their own frame.
   if (browser_view_->IsBrowserTypePanel())
     return false;
 
-  if (browser_view_->browser()->type() == Browser::TYPE_EXTENSION_APP)
-    return false;
-
   // We don't theme popup or app windows, so regardless of whether or not a
   // theme is active for normal browser windows, we don't want to use the custom
   // frame for popups/apps.
   if (!browser_view_->IsBrowserTypeNormal() && win_util::ShouldUseVistaFrame())
     return true;
 
   // Otherwise, we use the native frame when we're told we should by the theme
   // provider (e.g. no custom theme is active).
   return GetThemeProvider()->ShouldUseNativeFrame();
 }
@@ skipping 182 matching lines @@
       gfx::Rect tabstrip_bounds(
           GetBoundsForTabStrip(browser_view_->tabstrip()));
       margins.cyTopHeight = (browser_view_->UseVerticalTabs() ?
           tabstrip_bounds.y() : tabstrip_bounds.bottom()) + kDWMFrameTopOffset;
     }
   } else {
     // For popup and app windows we want to use the default margins.
   }
   DwmExtendFrameIntoClientArea(GetNativeView(), &margins);
 }