Adding status to swap complete

ui/gl/gl_surface_wgl.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 "ui/gl/gl_surface_wgl.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/gl/gl_bindings.h"
@@ skipping 232 matching lines @@
     DestroyWindow(child_window_);
 
   child_window_ = NULL;
   device_context_ = NULL;
 }
 
 bool NativeViewGLSurfaceWGL::IsOffscreen() {
   return false;
 }
 
-bool NativeViewGLSurfaceWGL::SwapBuffers() {
+gfx::SwapResult NativeViewGLSurfaceWGL::SwapBuffers() {
   TRACE_EVENT2("gpu", "NativeViewGLSurfaceWGL:RealSwapBuffers",
       "width", GetSize().width(),
       "height", GetSize().height());
 
   // Resize the child window to match the parent before swapping. Do not repaint
   // it as it moves.
   RECT rect;
   if (!GetClientRect(window_, &rect))
-    return false;
+    return gfx::SwapResult::SWAP_FAILED;
   if (!MoveWindow(child_window_,
                   0,
                   0,
                   rect.right - rect.left,
                   rect.bottom - rect.top,
                   FALSE)) {
-    return false;
+    return gfx::SwapResult::SWAP_FAILED;
   }
 
   DCHECK(device_context_);
-  return ::SwapBuffers(device_context_) == TRUE;
+  return ::SwapBuffers(device_context_) == TRUE ? gfx::SwapResult::SWAP_ACK
+                                                : gfx::SwapResult::SWAP_FAILED;
 }
 
 gfx::Size NativeViewGLSurfaceWGL::GetSize() {
   RECT rect;
   BOOL result = GetClientRect(child_window_, &rect);
   DCHECK(result);
   return gfx::Size(rect.right - rect.left, rect.bottom - rect.top);
 }
 
 void* NativeViewGLSurfaceWGL::GetHandle() {
@@ skipping 54 matching lines @@
   if (pbuffer_) {
     wglDestroyPbufferARB(static_cast<HPBUFFERARB>(pbuffer_));
     pbuffer_ = NULL;
   }
 }
 
 bool PbufferGLSurfaceWGL::IsOffscreen() {
   return true;
 }
 
-bool PbufferGLSurfaceWGL::SwapBuffers() {
+gfx::SwapResult PbufferGLSurfaceWGL::SwapBuffers() {
   NOTREACHED() << "Attempted to call SwapBuffers on a pbuffer.";
-  return false;
+  return gfx::SwapResult::SWAP_FAILED;
 }
 
 gfx::Size PbufferGLSurfaceWGL::GetSize() {
   return size_;
 }
 
 void* PbufferGLSurfaceWGL::GetHandle() {
   return device_context_;
 }
 
 }  // namespace gfx