Adding status to swap complete

ui/gl/gl_surface_glx.h

Index: ui/gl/gl_surface_glx.h
diff --git a/ui/gl/gl_surface_glx.h b/ui/gl/gl_surface_glx.h
index c1fca6006a1726b5971bd0494d284220ad61e22d..0c8063eb4965f3e0d3d8f10805d2b9cf1f5aa51d 100644
--- a/ui/gl/gl_surface_glx.h
+++ b/ui/gl/gl_surface_glx.h
@@ -59,12 +59,12 @@ class GL_EXPORT NativeViewGLSurfaceGLX : public GLSurfaceGLX,
   void Destroy() override;
   bool Resize(const gfx::Size& size) override;
   bool IsOffscreen() override;
-  bool SwapBuffers() override;
+  gfx::SwapResult SwapBuffers() override;
   gfx::Size GetSize() override;
   void* GetHandle() override;
   bool SupportsPostSubBuffer() override;
   void* GetConfig() override;
-  bool PostSubBuffer(int x, int y, int width, int height) override;
+  gfx::SwapResult PostSubBuffer(int x, int y, int width, int height) override;
   VSyncProvider* GetVSyncProvider() override;
 
  protected:
@@ -101,7 +101,7 @@ class GL_EXPORT PbufferGLSurfaceGLX : public GLSurfaceGLX {
   bool Initialize() override;
   void Destroy() override;
   bool IsOffscreen() override;
-  bool SwapBuffers() override;
+  gfx::SwapResult SwapBuffers() override;
   gfx::Size GetSize() override;
   void* GetHandle() override;
   void* GetConfig() override;