Move Inspect[BackgroundPage|ExtensionHost] Out of ExtensionService

chrome/browser/extensions/devtools_util.cc

+// Copyright 2013 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/extensions/devtools_util.h"
+
+#include "chrome/browser/devtools/devtools_window.h"
+#include "chrome/browser/extensions/extension_host.h"
+#include "chrome/browser/extensions/extension_process_manager.h"
+#include "chrome/browser/extensions/extension_system.h"
+#include "chrome/browser/extensions/lazy_background_task_queue.h"
+#include "chrome/common/extensions/extension.h"
+
+namespace extensions {
+namespace devtools_util {
+
+namespace {
+
+// Helper to inspect an ExtensionHost after it has been loaded.
+void InspectExtensionHost(ExtensionHost* host) {
+  if (host)
+    DevToolsWindow::OpenDevToolsWindow(host->render_view_host());
+}
+
+}  // namespace
+
+void InspectBackgroundPage(const Extension* extension, Profile* profile) {
+  DCHECK(extension);
+  ExtensionSystem* system = ExtensionSystem::Get(profile);
+  ExtensionHost* host =
+      system->process_manager()->GetBackgroundHostForExtension(extension->id());
+  if (host) {
+    InspectExtensionHost(host);
+  } else {
+    system->lazy_background_task_queue()->AddPendingTask(
+        profile,
+        extension->id(),
+        base::Bind(&InspectExtensionHost));
+  }
+}
+
+}  // namespace devtools_util
+}  // namespace extensions