Early wait on texture resource sync points in gl_renderer.

cc/output/gl_renderer.h

Index: cc/output/gl_renderer.h
diff --git a/cc/output/gl_renderer.h b/cc/output/gl_renderer.h
index acf28471cbfd67eb4e3ad0c1c8dc0f1a8996c303..5332e6816ab9d6dfb0dda5299e98d7209c8fdb07 100644
--- a/cc/output/gl_renderer.h
+++ b/cc/output/gl_renderer.h
@@ -111,6 +111,8 @@ class CC_EXPORT GLRenderer : public DirectRenderer {
                              bool draw_rect_covers_full_surface) OVERRIDE;
   virtual void ClearFramebuffer(DrawingFrame* frame,
                                 bool has_external_stencil_test) OVERRIDE;
+  virtual void DoPrelockQuad(DrawingFrame* frame,
+                             const class DrawQuad*) OVERRIDE;
   virtual void DoDrawQuad(DrawingFrame* frame, const class DrawQuad*) OVERRIDE;
   virtual void BeginDrawingFrame(DrawingFrame* frame) OVERRIDE;
   virtual void FinishDrawingFrame(DrawingFrame* frame) OVERRIDE;