Run draw callback immediately if no Display is damaged.

This may cause the draw callback to be run earlier than before if the Surface would later be added to a Display, but prevents it ensures that the callback runs if the Surface wouldn't be drawn at all

BUG=440269

Review URL: https://codereview.chromium.org/792383004

Cr-Commit-Position: refs/heads/master@{#313212}

1 files changed, 3 insertions, 3 deletions

diff --git a/cc/surfaces/surface_factory.h b/cc/surfaces/surface_factory.h
index 7abd929..b6b627f 100644
--- a/cc/surfaces/surface_factory.h
+++ b/cc/surfaces/surface_factory.h
@@ -27,6 +27,8 @@ class Surface;
 class SurfaceFactoryClient;
 class SurfaceManager;
 
+enum class SurfaceDrawStatus { DRAW_SKIPPED, DRAWN };
+
 // A SurfaceFactory is used to create surfaces that may share resources and
 // receive returned resources for frames submitted to those surfaces. Resources
 // submitted to frames created by a particular factory will be returned to that
@@ -35,9 +37,7 @@ class SurfaceManager;
 class CC_SURFACES_EXPORT SurfaceFactory
     : public base::SupportsWeakPtr<SurfaceFactory> {
  public:
-  // This callback is called with true if the frame was drawn, or false if it
-  // was discarded.
-  using DrawCallback = base::Callback<void(bool)>;
+  using DrawCallback = base::Callback<void(SurfaceDrawStatus)>;
 
   SurfaceFactory(SurfaceManager* manager, SurfaceFactoryClient* client);
   ~SurfaceFactory();