cc: add layer usage hint to texture layer

webkit/compositor_bindings/web_external_texture_layer_impl.cc

Index: webkit/compositor_bindings/web_external_texture_layer_impl.cc
diff --git a/webkit/compositor_bindings/web_external_texture_layer_impl.cc b/webkit/compositor_bindings/web_external_texture_layer_impl.cc
index 979e754678c4a4ddf6e5a075d5092b678f57d591..4095aa000e741cc9a99dba71ff85374b1b3a8f05 100644
--- a/webkit/compositor_bindings/web_external_texture_layer_impl.cc
+++ b/webkit/compositor_bindings/web_external_texture_layer_impl.cc
@@ -16,13 +16,13 @@ using namespace cc;
 namespace WebKit {
 
 WebExternalTextureLayerImpl::WebExternalTextureLayerImpl(
-    WebExternalTextureLayerClient* client)
+    WebExternalTextureLayerClient* client, bool single_buffer)
     : client_(client) {
   scoped_refptr<TextureLayer> layer;
   if (client_)
-    layer = TextureLayer::Create(this);
+    layer = TextureLayer::Create(this, single_buffer);
   else
-    layer = TextureLayer::Create(NULL);
+    layer = TextureLayer::Create(NULL, single_buffer);
   layer->SetIsDrawable(true);
   layer_.reset(new WebLayerImpl(layer));
 }