[SP] Add a drawing recorder before painting caps lock indicator in password fields.

Source/platform/PlatformKeyboardEvent.h

 /*
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2008 Collabora, Ltd.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 87 matching lines @@
     String m_text;
     String m_unmodifiedText;
     String m_keyIdentifier;
     String m_code;
     String m_key;
     int m_windowsVirtualKeyCode;
     int m_nativeVirtualKeyCode;
     bool m_autoRepeat;
     bool m_isKeypad;
     bool m_isSystemKey;
+
+private:
+    friend class Internals;
+    enum OverrideCapsLockState {
+        Default,
+        On,
+        Off
+    };
+    // Allows overriding the current caps lock state for testing purposes.
+    PLATFORM_EXPORT static void setCurrentCapsLockState(OverrideCapsLockState state) { s_overrideCapsLockState = state; }
+    PLATFORM_EXPORT static OverrideCapsLockState s_overrideCapsLockState;
 };
 
 } // namespace blink
 
 #endif // PlatformKeyboardEvent_h