Revert of Adding status to swap complete

gpu/command_buffer/service/gles2_cmd_decoder.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/command_buffer/service/gles2_cmd_decoder.h"
 
 #include <stdio.h>
 
 #include <algorithm>
 #include <cmath>
@@ skipping 8467 matching lines @@
   }
   bool is_tracing;
   TRACE_EVENT_CATEGORY_GROUP_ENABLED(TRACE_DISABLED_BY_DEFAULT("gpu.debug"),
                                      &is_tracing);
   if (is_tracing) {
     bool is_offscreen = !!offscreen_target_frame_buffer_.get();
     ScopedFrameBufferBinder binder(this, GetBackbufferServiceId());
     gpu_state_tracer_->TakeSnapshotWithCurrentFramebuffer(
         is_offscreen ? offscreen_size_ : surface_->GetSize());
   }
-  if (surface_->PostSubBuffer(c.x, c.y, c.width, c.height) !=
-      gfx::SwapResult::SWAP_FAILED) {
+  if (surface_->PostSubBuffer(c.x, c.y, c.width, c.height)) {
     return error::kNoError;
   } else {
     LOG(ERROR) << "Context lost because PostSubBuffer failed.";
     return error::kLostContext;
   }
 }
 
 error::Error GLES2DecoderImpl::HandleScheduleOverlayPlaneCHROMIUM(
     uint32 immediate_data_size,
     const void* cmd_data) {
@@ skipping 2512 matching lines @@
             offscreen_target_color_texture_.get());
       }
 
       // Ensure the side effects of the copy are visible to the parent
       // context. There is no need to do this for ANGLE because it uses a
       // single D3D device for all contexts.
       if (!feature_info_->gl_version_info().is_angle)
         glFlush();
     }
   } else {
-    if (surface_->SwapBuffers() == gfx::SwapResult::SWAP_FAILED) {
+    if (!surface_->SwapBuffers()) {
       LOG(ERROR) << "Context lost because SwapBuffers failed.";
       if (!CheckResetStatus()) {
         MarkContextLost(error::kUnknown);
         group_->LoseContexts(error::kUnknown);
       }
     }
   }
 
   // This may be a slow command.  Exit command processing to allow for
   // context preemption and GPU watchdog checks.
@@ skipping 2277 matching lines @@
   }
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu