Blend TextureLayer background-color at draw time.

webkit/renderer/compositor_bindings/web_external_texture_layer_impl.cc

Index: webkit/renderer/compositor_bindings/web_external_texture_layer_impl.cc
diff --git a/webkit/renderer/compositor_bindings/web_external_texture_layer_impl.cc b/webkit/renderer/compositor_bindings/web_external_texture_layer_impl.cc
index 22da707b28cd9520c639d29d98bb0f5b53fa3b09..7ad6f380417309d9fb3ef4a09ed931bc5f96e6f3 100644
--- a/webkit/renderer/compositor_bindings/web_external_texture_layer_impl.cc
+++ b/webkit/renderer/compositor_bindings/web_external_texture_layer_impl.cc
@@ -73,6 +73,10 @@ void WebExternalTextureLayerImpl::setPremultipliedAlpha(
       premultiplied_alpha);
 }
 
+void WebExternalTextureLayerImpl::setBlendBackgroundColor(bool blend) {
+  static_cast<TextureLayer*>(layer_->layer())->SetBlendBackgroundColor(blend);
+}
+
 void WebExternalTextureLayerImpl::willModifyTexture() {
   static_cast<TextureLayer*>(layer_->layer())->WillModifyTexture();
 }