Add cc::SurfaceInfo::is_valid()

services/ui/ws/frame_generator.cc

Index: services/ui/ws/frame_generator.cc
diff --git a/services/ui/ws/frame_generator.cc b/services/ui/ws/frame_generator.cc
index a62aa6efb898cb7c073d7571e08ae37304aa4c9e..b1574c4309aed1a6f18ff7b26dc21a7339066e7f 100644
--- a/services/ui/ws/frame_generator.cc
+++ b/services/ui/ws/frame_generator.cc
@@ -43,12 +43,12 @@ void FrameGenerator::SetDeviceScaleFactor(float device_scale_factor) {
   if (device_scale_factor_ == device_scale_factor)
     return;
   device_scale_factor_ = device_scale_factor;
-  if (window_manager_surface_info_.id().is_valid())
+  if (window_manager_surface_info_.is_valid())
     compositor_frame_sink_->SetNeedsBeginFrame(true);
 }
 
 void FrameGenerator::OnSurfaceCreated(const cc::SurfaceInfo& surface_info) {
-  DCHECK(surface_info.id().is_valid());
+  DCHECK(surface_info.is_valid());
 
   // Only handle embedded surfaces changing here. The display root surface
   // changing is handled immediately after the CompositorFrame is submitted.
@@ -59,7 +59,7 @@ void FrameGenerator::OnSurfaceCreated(const cc::SurfaceInfo& surface_info) {
 }
 
 void FrameGenerator::OnWindowDamaged() {
-  if (window_manager_surface_info_.id().is_valid())
+  if (window_manager_surface_info_.is_valid())
     compositor_frame_sink_->SetNeedsBeginFrame(true);
 }
 
@@ -134,7 +134,7 @@ cc::CompositorFrame FrameGenerator::GenerateCompositorFrame(
   }
   frame.metadata.device_scale_factor = device_scale_factor_;
 
-  if (window_manager_surface_info_.id().is_valid()) {
+  if (window_manager_surface_info_.is_valid()) {
     frame.metadata.referenced_surfaces.push_back(
         window_manager_surface_info_.id());
   }
@@ -143,7 +143,7 @@ cc::CompositorFrame FrameGenerator::GenerateCompositorFrame(
 }
 
 void FrameGenerator::DrawWindow(cc::RenderPass* pass) {
-  DCHECK(window_manager_surface_info_.id().is_valid());
+  DCHECK(window_manager_surface_info_.is_valid());
 
   const gfx::Rect bounds_at_origin(
       window_manager_surface_info_.size_in_pixels());