Use EGL_ANGLE_surface_orientation in Chrome to avoid a blit.

ui/gl/gl_surface.h

Index: ui/gl/gl_surface.h
diff --git a/ui/gl/gl_surface.h b/ui/gl/gl_surface.h
index f91ef43b8ba9a588201d4f9690e3c83efc64404b..d528913563d88b1c094a15946326f10b66503e62 100644
--- a/ui/gl/gl_surface.h
+++ b/ui/gl/gl_surface.h
@@ -180,6 +180,8 @@ class GL_EXPORT GLSurface : public base::RefCounted<GLSurface> {
 
   virtual bool IsSurfaceless() const;
 
+  virtual bool FlipsVertically() const;
+
   // Create a GL surface that renders directly to a view.
   static scoped_refptr<GLSurface> CreateViewGLSurface(
       gfx::AcceleratedWidget window);
@@ -266,6 +268,7 @@ class GL_EXPORT GLSurfaceAdapter : public GLSurface {
                             const Rect& bounds_rect,
                             const RectF& crop_rect) override;
   bool IsSurfaceless() const override;
+  bool FlipsVertically() const override;
 
   GLSurface* surface() const { return surface_.get(); }