I edited the source of "browser_navigator.cc". Now I have the devtools each new tab or window.
How: edit the file browser_navigator.cc
include
#include "chrome/browser/debugger/devtools_toggle_action.h"
#include "chrome/browser/debugger/devtools_window.h"
#include "content/public/browser/devtools_manager.h"
and after
"LoadURLInContents(params->target_contents->tab_contents(),url, params, extra_headers);"
I add
"DevToolsWindow::ToggleDevToolsWindow(params->target_contents->tab_contents()->GetRenderViewHost(),DEVTOOLS_TOGGLE_ACTION_NONE);"