Create BaseWindow and ExtensionWindowWrapper for extension API access to Panels

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 5fbe3d61549c1b29c0de5e5c2badb654da996128..fb83b0fbdb4dd9f126dd94b87901871db3ea612b 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -1075,6 +1075,8 @@
         'browser/extensions/browser_action_test_util_views.cc',
         'browser/extensions/bundle_installer.cc',
         'browser/extensions/bundle_installer.h',
+        'browser/extensions/browser_extension_window_controller.cc',
+        'browser/extensions/browser_extension_window_controller.h',
         'browser/extensions/component_loader.cc',
         'browser/extensions/component_loader.h',
         'browser/extensions/convert_user_script.cc',
@@ -1281,6 +1283,10 @@
         'browser/extensions/extension_updater.h',
         'browser/extensions/extension_warning_set.cc',
         'browser/extensions/extension_warning_set.h',
+        'browser/extensions/extension_window_controller.cc',
+        'browser/extensions/extension_window_controller.h',
+        'browser/extensions/extension_window_list.cc',
+        'browser/extensions/extension_window_list.h',
         'browser/extensions/extension_web_socket_proxy_private_api.cc',
         'browser/extensions/extension_web_socket_proxy_private_api.h',
         'browser/extensions/extension_web_ui.cc',
@@ -2607,6 +2613,7 @@
         'browser/ui/auto_login_info_bar_delegate.h',
         'browser/ui/auto_login_prompter.cc',
         'browser/ui/auto_login_prompter.h',
+        'browser/ui/base_window.h',
         'browser/ui/blocked_content/blocked_content_container.cc',
         'browser/ui/blocked_content/blocked_content_container.h',
         'browser/ui/blocked_content/blocked_content_tab_helper.cc',