[Extensions] Propagate activeTab hosts to extension background pages

chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc

 // Copyright 2014 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/renderer/extensions/chrome_extensions_dispatcher_delegate.h"
 
 #include "base/command_line.h"
 #include "base/sha1.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/crash_keys.h"
 #include "chrome/common/extensions/features/feature_channel.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/renderer_resources.h"
 #include "chrome/renderer/extensions/app_bindings.h"
 #include "chrome/renderer/extensions/automation_internal_custom_bindings.h"
 #include "chrome/renderer/extensions/chrome_v8_context.h"
 #include "chrome/renderer/extensions/file_browser_handler_custom_bindings.h"
 #include "chrome/renderer/extensions/file_manager_private_custom_bindings.h"
 #include "chrome/renderer/extensions/media_galleries_custom_bindings.h"
 #include "chrome/renderer/extensions/notifications_native_handler.h"
 #include "chrome/renderer/extensions/page_capture_custom_bindings.h"
 #include "chrome/renderer/extensions/platform_keys_natives.h"
 #include "chrome/renderer/extensions/sync_file_system_custom_bindings.h"
-#include "chrome/renderer/extensions/tab_finder.h"
 #include "chrome/renderer/extensions/tabs_custom_bindings.h"
 #include "chrome/renderer/extensions/webstore_bindings.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/feature_switch.h"
 #include "extensions/common/permissions/manifest_permission_set.h"
 #include "extensions/common/permissions/permission_set.h"
 #include "extensions/common/permissions/permissions_data.h"
 #include "extensions/common/switches.h"
@@ skipping 236 matching lines @@
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           ::switches::kSingleProcess))
     return;
   crash_keys::SetActiveExtensions(extension_ids);
 }
 
 void ChromeExtensionsDispatcherDelegate::SetChannel(int channel) {
   extensions::SetCurrentChannel(
       static_cast<chrome::VersionInfo::Channel>(channel));
 }