Enabled Ctrl+Shift+L for POPUP and APP windows....

chrome/browser/debugger/debugger_io.h

 // 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.
 
 #ifndef CHROME_BROWSER_DEBUGGER_DEBUGGER_IO_H_
 #define CHROME_BROWSER_DEBUGGER_DEBUGGER_IO_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 27 matching lines @@
   // entered and true when a response to that command has been received
   virtual void SetDebuggerReady(bool ready) {}
   // called by debugger debugger - brk is false when the web page being debugged
   // is running, and true when the page is stopped at a breakpoint
   virtual void SetDebuggerBreak(bool brk) {}
 
   // sends message to debugger UI page in order to invoke JS function in it
   virtual void CallFunctionInPage(const std::wstring& name,
                                   ListValue* argv) {}
 
+  // Shows the debugger UI and returns true if it has any.
+  virtual bool ShowWindow() { return false; }
+
 protected:
   DebuggerHost* debugger_;
 
 private:
   DISALLOW_COPY_AND_ASSIGN(DebuggerInputOutput);
 };
 
 #endif // CHROME_BROWSER_DEBUGGER_DEBUGGER_IO_H_