Close detached DevTools window (rather than open a new instance) when it receives an F12 keypress

chrome/browser/ui/views/extensions/extension_popup.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 "chrome/browser/ui/views/extensions/extension_popup.h"
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "chrome/browser/debugger/devtools_window.h"
 #include "chrome/browser/extensions/extension_process_manager.h"
@@ skipping 195 matching lines @@
   Show();
 
   // Focus on the host contents when the bubble is first shown.
   host()->host_contents()->Focus();
 
   // Listen for widget focus changes after showing (used for non-aura win).
   views::WidgetFocusManager::GetInstance()->AddFocusChangeListener(this);
 
   if (inspect_with_devtools_) {
     DevToolsWindow::ToggleDevToolsWindow(host()->render_view_host(),
+        true,
         DEVTOOLS_TOGGLE_ACTION_SHOW_CONSOLE);
   }
 }
 
 void ExtensionPopup::CloseBubble() {
   GetWidget()->Close();
 }