Cleanup SurfaceVisibility code.

gpu/gles2_conform_support/egl/display.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/gles2_conform_support/egl/display.h"
 
 #include <vector>
 #include "base/at_exit.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 310 matching lines @@
 
 void Display::SignalSyncPoint(uint32 sync_point,
                               const base::Closure& callback) {
   NOTIMPLEMENTED();
 }
 
 void Display::SignalQuery(uint32 query, const base::Closure& callback) {
   NOTIMPLEMENTED();
 }
 
-void Display::SetSurfaceVisible(bool visible) {
-  NOTIMPLEMENTED();
-}
-
 void Display::SetLock(base::Lock*) {
   NOTIMPLEMENTED();
 }
 
 bool Display::IsGpuChannelLost() {
   NOTIMPLEMENTED();
   return false;
 }
 
 gpu::CommandBufferNamespace Display::GetNamespaceID() const {
@@ skipping 23 matching lines @@
 void Display::SignalSyncToken(const gpu::SyncToken& sync_token,
                               const base::Closure& callback) {
   NOTIMPLEMENTED();
 }
 
 bool Display::CanWaitUnverifiedSyncToken(const gpu::SyncToken* sync_token) {
   return false;
 }
 
 }  // namespace egl