Adding status to swap complete

ui/gl/gl_surface_glx.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.
 
 extern "C" {
 #include <X11/Xlib.h>
 }
 
 #include "ui/gl/gl_surface_glx.h"
 
@@ skipping 522 matching lines @@
   glXWaitGL();
   XResizeWindow(g_display, window_, size.width(), size.height());
   glXWaitX();
   return true;
 }
 
 bool NativeViewGLSurfaceGLX::IsOffscreen() {
   return false;
 }
 
-bool NativeViewGLSurfaceGLX::SwapBuffers() {
+gfx::SwapResult NativeViewGLSurfaceGLX::SwapBuffers() {
   TRACE_EVENT2("gpu", "NativeViewGLSurfaceGLX:RealSwapBuffers",
       "width", GetSize().width(),
       "height", GetSize().height());
 
   glXSwapBuffers(g_display, GetDrawableHandle());
-  return true;
+  return gfx::SwapResult::SWAP_ACK;
 }
 
 gfx::Size NativeViewGLSurfaceGLX::GetSize() {
   return size_;
 }
 
 void* NativeViewGLSurfaceGLX::GetHandle() {
   return reinterpret_cast<void*>(GetDrawableHandle());
 }
 
 bool NativeViewGLSurfaceGLX::SupportsPostSubBuffer() {
   return gfx::g_driver_glx.ext.b_GLX_MESA_copy_sub_buffer;
 }
 
 void* NativeViewGLSurfaceGLX::GetConfig() {
   if (!config_)
     config_ = GLSurfaceGLX::GetConfig(window_);
   return config_;
 }
 
-bool NativeViewGLSurfaceGLX::PostSubBuffer(
-    int x, int y, int width, int height) {
+gfx::SwapResult 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 true;
+  return gfx::SwapResult::SWAP_ACK;
 }
 
 VSyncProvider* NativeViewGLSurfaceGLX::GetVSyncProvider() {
   return vsync_provider_.get();
 }
 
 NativeViewGLSurfaceGLX::~NativeViewGLSurfaceGLX() {
   Destroy();
 }
 
@@ skipping 25 matching lines @@
   if (window_) {
     XDestroyWindow(g_display, window_);
     window_ = 0;
   }
 }
 
 bool UnmappedNativeViewGLSurfaceGLX::IsOffscreen() {
   return true;
 }
 
-bool UnmappedNativeViewGLSurfaceGLX::SwapBuffers() {
+gfx::SwapResult UnmappedNativeViewGLSurfaceGLX::SwapBuffers() {
   NOTREACHED() << "Attempted to call SwapBuffers on an unmapped window.";
-  return false;
+  return gfx::SwapResult::SWAP_FAILED;
 }
 
 gfx::Size UnmappedNativeViewGLSurfaceGLX::GetSize() {
   return size_;
 }
 
 void* UnmappedNativeViewGLSurfaceGLX::GetHandle() {
   return reinterpret_cast<void*>(window_);
 }
 
 void* UnmappedNativeViewGLSurfaceGLX::GetConfig() {
   if (!config_)
     config_ = GLSurfaceGLX::GetConfig(window_);
   return config_;
 }
 
 UnmappedNativeViewGLSurfaceGLX::~UnmappedNativeViewGLSurfaceGLX() {
   Destroy();
 }
 
 }  // namespace gfx