LibMedia: Move ResumingStateHandler::resume() out-of-line

Libraries/LibMedia/CMakeLists.txt

@@ -11,6 +11,7 @@ set(SOURCES
     IncrementallyPopulatedStream.cpp
     PlaybackManager.cpp
     PlaybackStates/PlaybackStateHandler.cpp
+    PlaybackStates/ResumingStateHandler.cpp
     Providers/AudioDataProvider.cpp
     Providers/GenericTimeProvider.cpp
     Providers/VideoDataProvider.cpp

Libraries/LibMedia/PlaybackStates/ResumingStateHandler.cpp

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2025, Gregory Bertilson <gregory@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include "ResumingStateHandler.h"
+
+#include <LibMedia/PlaybackManager.h>
+#include <LibMedia/PlaybackStates/PausedStateHandler.h>
+#include <LibMedia/PlaybackStates/PlayingStateHandler.h>
+
+namespace Media {
+
+void ResumingStateHandler::resume()
+{
+    if (m_playing)
+        manager().replace_state_handler<PlayingStateHandler>();
+    else
+        manager().replace_state_handler<PausedStateHandler>();
+}
+
+}

Libraries/LibMedia/PlaybackStates/ResumingStateHandler.h

@@ -1,14 +1,12 @@
 /*
- * Copyright (c) 2025, Gregory Bertilson <zaggy1024@gmail.com>
+ * Copyright (c) 2025, Gregory Bertilson <gregory@ladybird.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
 #pragma once
 
-#include <LibMedia/PlaybackManager.h>
 #include <LibMedia/PlaybackStates/Forward.h>
-#include <LibMedia/PlaybackStates/PausedStateHandler.h>
 
 namespace Media {
 
@@ -21,14 +19,6 @@ public:
     }
     virtual ~ResumingStateHandler() override = default;
 
-    void resume()
-    {
-        if (m_playing)
-            manager().replace_state_handler<PlayingStateHandler>();
-        else
-            manager().replace_state_handler<PausedStateHandler>();
-    }
-
     virtual void on_enter() override { }
     virtual void on_exit() override { }
 
@@ -46,6 +36,9 @@ public:
         return m_playing;
     }
 
+protected:
+    void resume();
+
 private:
     bool m_playing { false };
 };