Hide the tab indicators and the shelf when in immersive + tab fullscreen

chrome/browser/fullscreen_win.cc

 // Copyright (c) 2011 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/fullscreen.h"
 
 #include <windows.h>
 #include <shellapi.h>
 
 #include "base/logging.h"
 #include "base/win/windows_version.h"
 
 #if defined(USE_ASH)
 #include "ash/wm/window_util.h"
 #include "chrome/browser/ui/host_desktop.h"
+#include "ui/aura/window.h"
 #endif
 
 static bool IsPlatformFullScreenMode() {
   // SHQueryUserNotificationState is only available for Vista and above.
 #if defined(NTDDI_VERSION) && (NTDDI_VERSION >= NTDDI_VISTA)
   if (base::win::GetVersion() < base::win::VERSION_VISTA)
     return false;
 
   typedef HRESULT(WINAPI *SHQueryUserNotificationStatePtr)(
       QUERY_USER_NOTIFICATION_STATE* state);
@@ skipping 67 matching lines @@
   if (!::AttachConsole(pid))
     return false;
 
   DWORD modes = 0;
   ::GetConsoleDisplayMode(&modes);
   ::FreeConsole();
 
   return (modes & (CONSOLE_FULLSCREEN | CONSOLE_FULLSCREEN_HARDWARE)) != 0;
 }
 
+#if defined(USE_ASH)
+// Returns true if the active window or one its ancestors is fullscreen.
+static bool IsActiveWindowFullscreen() {
+  aura::Window* window = ash::wm::GetActiveWindow();
+  while (window) {
+    if (ash::wm::IsWindowFullscreen(window))
+      return true;
+    window = window->parent();
+  }
+  return false;
+}
+#endif
+
 bool IsFullScreenMode() {
 #if defined(USE_ASH)
   if (chrome::GetActiveDesktop() == chrome::HOST_DESKTOP_TYPE_ASH)
-    return ash::wm::IsActiveWindowFullscreen();
+    return IsActiveWindowFullscreen();
 #endif
   return IsPlatformFullScreenMode() ||
          IsFullScreenWindowMode() ||
          IsFullScreenConsoleMode();
 }