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

Source/platform/PlatformKeyboardEvent.h

Index: Source/platform/PlatformKeyboardEvent.h
diff --git a/Source/platform/PlatformKeyboardEvent.h b/Source/platform/PlatformKeyboardEvent.h
index c024a03f6b2311e5a6c6b27fcf3468a43aa9f63a..2190b6fbd4ce4433e5ad168adf9f5516b90451e4 100644
--- a/Source/platform/PlatformKeyboardEvent.h
+++ b/Source/platform/PlatformKeyboardEvent.h
@@ -105,6 +105,17 @@ protected:
     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