remove |level| in copyVideoTextureToPlatformTexture().

public/platform/WebMediaPlayer.h

Index: public/platform/WebMediaPlayer.h
diff --git a/public/platform/WebMediaPlayer.h b/public/platform/WebMediaPlayer.h
index 0410e1dc8b79050debf538e11920bcf53f0adf01..a11bf0785f8abb13615f26b34e884d5b029226cc 100644
--- a/public/platform/WebMediaPlayer.h
+++ b/public/platform/WebMediaPlayer.h
@@ -150,6 +150,7 @@ public:
     virtual void paint(WebCanvas*, const WebRect&, unsigned char alpha, SkXfermode::Mode) = 0;
     // Do a GPU-GPU textures copy if possible.
     virtual bool copyVideoTextureToPlatformTexture(WebGraphicsContext3D*, unsigned texture, unsigned level, unsigned internalFormat, unsigned type, bool premultiplyAlpha, bool flipY) { return false; }
+    virtual bool copyVideoTextureToPlatformTexture(WebGraphicsContext3D*, unsigned texture, unsigned internalFormat, unsigned type, bool premultiplyAlpha, bool flipY) { return false; }
 
     virtual WebAudioSourceProvider* audioSourceProvider() { return nullptr; }