remove |level| in copyVideoTextureToPlatformTexture().

Source/core/html/HTMLVideoElement.cpp

Index: Source/core/html/HTMLVideoElement.cpp
diff --git a/Source/core/html/HTMLVideoElement.cpp b/Source/core/html/HTMLVideoElement.cpp
index 8fbbf1074f9ad6f3e08f571bb6e8577da9deeb7f..9e44908bf274692a715d64b13f7a84430ef51013 100644
--- a/Source/core/html/HTMLVideoElement.cpp
+++ b/Source/core/html/HTMLVideoElement.cpp
@@ -218,15 +218,13 @@ void HTMLVideoElement::paintCurrentFrame(SkCanvas* canvas, const IntRect& destRe
     webMediaPlayer()->paint(canvas, destRect, paint ? paint->getAlpha() : 0xFF, mode);
 }
 
-bool HTMLVideoElement::copyVideoTextureToPlatformTexture(WebGraphicsContext3D* context, Platform3DObject texture, GLint level, GLenum internalFormat, GLenum type, bool premultiplyAlpha, bool flipY)
+bool HTMLVideoElement::copyVideoTextureToPlatformTexture(WebGraphicsContext3D* context, Platform3DObject texture, GLenum internalFormat, GLenum type, bool premultiplyAlpha, bool flipY)
 {
     if (!webMediaPlayer())
         return false;
 
-    if (!Extensions3DUtil::canUseCopyTextureCHROMIUM(internalFormat, type, level))
-        return false;

[dshwang, 2015/06/05 14:27:45]

already failed if |level| is zero, and then go to software fallback.

-
-    return webMediaPlayer()->copyVideoTextureToPlatformTexture(context, texture, level, internalFormat, type, premultiplyAlpha, flipY);
+    ASSERT(Extensions3DUtil::canUseCopyTextureCHROMIUM(GL_TEXTURE_2D, internalFormat, type, 0));
+    return webMediaPlayer()->copyVideoTextureToPlatformTexture(context, texture, internalFormat, type, premultiplyAlpha, flipY);
 }
 
 bool HTMLVideoElement::hasAvailableVideoFrame() const