Revert of Adding status to swap complete

ui/gl/gl_surface_glx.cc

Index: ui/gl/gl_surface_glx.cc
diff --git a/ui/gl/gl_surface_glx.cc b/ui/gl/gl_surface_glx.cc
index b021a4268387e200bad1af7968d2cb24f37c2979..0602dfabe0c675752f3c9b373a80948b8cb3462e 100644
--- a/ui/gl/gl_surface_glx.cc
+++ b/ui/gl/gl_surface_glx.cc
@@ -540,13 +540,13 @@
   return false;
 }
 
-gfx::SwapResult NativeViewGLSurfaceGLX::SwapBuffers() {
+bool NativeViewGLSurfaceGLX::SwapBuffers() {
   TRACE_EVENT2("gpu", "NativeViewGLSurfaceGLX:RealSwapBuffers",
       "width", GetSize().width(),
       "height", GetSize().height());
 
   glXSwapBuffers(g_display, GetDrawableHandle());
-  return gfx::SwapResult::SWAP_ACK;
+  return true;
 }
 
 gfx::Size NativeViewGLSurfaceGLX::GetSize() {
@@ -567,13 +567,11 @@
   return config_;
 }
 
-gfx::SwapResult NativeViewGLSurfaceGLX::PostSubBuffer(int x,
-                                                      int y,
-                                                      int width,
-                                                      int height) {
+bool NativeViewGLSurfaceGLX::PostSubBuffer(
+    int x, int y, int width, int height) {
   DCHECK(gfx::g_driver_glx.ext.b_GLX_MESA_copy_sub_buffer);
   glXCopySubBufferMESA(g_display, GetDrawableHandle(), x, y, width, height);
-  return gfx::SwapResult::SWAP_ACK;
+  return true;
 }
 
 VSyncProvider* NativeViewGLSurfaceGLX::GetVSyncProvider() {
@@ -619,9 +617,9 @@
   return true;
 }
 
-gfx::SwapResult UnmappedNativeViewGLSurfaceGLX::SwapBuffers() {
+bool UnmappedNativeViewGLSurfaceGLX::SwapBuffers() {
   NOTREACHED() << "Attempted to call SwapBuffers on an unmapped window.";
-  return gfx::SwapResult::SWAP_FAILED;
+  return false;
 }
 
 gfx::Size UnmappedNativeViewGLSurfaceGLX::GetSize() {