Adding status to swap complete

ui/ozone/platform/drm/gpu/page_flip_request.h

Index: ui/ozone/platform/drm/gpu/page_flip_request.h
diff --git a/ui/ozone/platform/drm/gpu/page_flip_request.h b/ui/ozone/platform/drm/gpu/page_flip_request.h
index c1a63b25389d6847a3ae0287f44b54fd2c61332e..c418a446817e20237eb3106d8f8433471c47128a 100644
--- a/ui/ozone/platform/drm/gpu/page_flip_request.h
+++ b/ui/ozone/platform/drm/gpu/page_flip_request.h
@@ -5,22 +5,27 @@
 #ifndef UI_OZONE_PLATFORM_DRM_GPU_PAGE_FLIP_REQUEST_H_
 #define UI_OZONE_PLATFORM_DRM_GPU_PAGE_FLIP_REQUEST_H_
 
+#include "base/atomic_ref_count.h"
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
+#include "ui/gfx/swap_result.h"
 
 namespace ui {
 
 class PageFlipRequest : public base::RefCounted<PageFlipRequest> {
  public:
-  PageFlipRequest(int crtc_count, const base::Closure& callback);
+  PageFlipRequest(int crtc_count,
+                  const base::Callback<void(gfx::SwapResult)>& callback);

[alexst (slow to review), 2015/04/29 17:53:37]

Let's typedef too.

[achaulk, 2015/05/06 18:29:48]

Done.

 
-  void Signal();
+  void Signal(gfx::SwapResult result);
 
  private:
   friend class base::RefCounted<PageFlipRequest>;
   ~PageFlipRequest();
 
-  base::Closure callback_;
+  base::Callback<void(gfx::SwapResult)> callback_;
+  base::AtomicRefCount count_;

[alexst (slow to review), 2015/04/29 17:53:37]

These all come on the same thread, so no need to use atomic.

[achaulk, 2015/05/06 18:29:48]

I just duplicated the implementation which used atomic

+  gfx::SwapResult result_;
 
   DISALLOW_COPY_AND_ASSIGN(PageFlipRequest);
 };