Elim detached_panel type and update chrome.windows documentation

chrome/browser/extensions/api/tabs/tabs_api.cc

Index: chrome/browser/extensions/api/tabs/tabs_api.cc
diff --git a/chrome/browser/extensions/api/tabs/tabs_api.cc b/chrome/browser/extensions/api/tabs/tabs_api.cc
index b0bc10e7696ae612ea84446bac640a245717b301..021df4b62ccce2a514dccb11a0e479d8fd8a07f1 100644
--- a/chrome/browser/extensions/api/tabs/tabs_api.cc
+++ b/chrome/browser/extensions/api/tabs/tabs_api.cc
@@ -225,9 +225,7 @@ bool IsValidStateForWindowsCreateFunction(
 
   bool has_bound = create_data->left || create_data->top ||
                    create_data->width || create_data->height;
-  bool is_panel =
-      create_data->type == windows::CreateType::CREATE_TYPE_PANEL ||
-      create_data->type == windows::CreateType::CREATE_TYPE_DETACHED_PANEL;
+  bool is_panel = create_data->type == windows::CreateType::CREATE_TYPE_PANEL;
 
   switch (create_data->state) {
     case windows::WINDOW_STATE_MINIMIZED:
@@ -500,8 +498,7 @@ ExtensionFunction::ResponseAction WindowsCreateFunction::Run() {
         extension_id = extension()->id();
         break;
 
-      case windows::CREATE_TYPE_PANEL:
-      case windows::CREATE_TYPE_DETACHED_PANEL: {
+      case windows::CREATE_TYPE_PANEL: {
         extension_id = extension()->id();
 #if defined(USE_ASH)
       // Only ChromeOS' version of chrome.windows.create would create a panel