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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/extensions/devtools_util.h"
      6 
      7 #include "chrome/browser/devtools/devtools_window.h"
      8 #include "chrome/browser/profiles/profile.h"
      9 #include "extensions/browser/extension_host.h"
     10 #include "extensions/browser/extension_system.h"
     11 #include "extensions/browser/lazy_background_task_queue.h"
     12 #include "extensions/browser/process_manager.h"
     13 #include "extensions/common/extension.h"
     14 
     15 namespace extensions {
     16 namespace devtools_util {
     17 
     18 namespace {
     19 
     20 // Helper to inspect an ExtensionHost after it has been loaded.
     21 void InspectExtensionHost(ExtensionHost* host) {
     22   if (host)
     23     DevToolsWindow::OpenDevToolsWindow(host->host_contents());
     24 }
     25 
     26 }  // namespace
     27 
     28 void InspectBackgroundPage(const Extension* extension, Profile* profile) {
     29   DCHECK(extension);
     30   ExtensionSystem* system = ExtensionSystem::Get(profile);
     31   ExtensionHost* host =
     32       system->process_manager()->GetBackgroundHostForExtension(extension->id());
     33   if (host) {
     34     InspectExtensionHost(host);
     35   } else {
     36     system->lazy_background_task_queue()->AddPendingTask(
     37         profile,
     38         extension->id(),
     39         base::Bind(&InspectExtensionHost));
     40   }
     41 }
     42 
     43 }  // namespace devtools_util
     44 }  // namespace extensions
     45