Revert of Adding status to swap complete

content/common/gpu/image_transport_surface_fbo_mac.mm

 // Copyright 2014 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 "content/common/gpu/image_transport_surface_fbo_mac.h"
 
 #include "base/trace_event/trace_event.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/common/gpu/image_transport_surface_calayer_mac.h"
 #include "content/common/gpu/image_transport_surface_iosurface_mac.h"
@@ skipping 151 matching lines @@
   // free'd when both the browser and gpu processes have Unref'd the IOSurface.
   if (!backbuffer_suggested_allocation_ &&
       !frontbuffer_suggested_allocation_ &&
       has_complete_framebuffer_) {
     DestroyFramebuffer();
   } else if (backbuffer_suggested_allocation_ && !has_complete_framebuffer_) {
     AllocateOrResizeFramebuffer(pixel_size_, scale_factor_);
   }
 }
 
-gfx::SwapResult ImageTransportSurfaceFBO::SwapBuffers() {
+bool ImageTransportSurfaceFBO::SwapBuffers() {
   TRACE_EVENT0("gpu", "ImageTransportSurfaceFBO::SwapBuffers");
-  return SwapBuffersInternal() ? gfx::SwapResult::SWAP_ACK
-                               : gfx::SwapResult::SWAP_FAILED;
+  return SwapBuffersInternal();
 }
 
 bool ImageTransportSurfaceFBO::SwapBuffersInternal() {
   DCHECK(backbuffer_suggested_allocation_);
   if (!frontbuffer_suggested_allocation_)
     return true;
   glFlush();
 
   // It is the responsibility of the storage provider to send the swap IPC.
   is_swap_buffers_send_pending_ = true;
@@ skipping 16 matching lines @@
   params.latency_info.swap(latency_info_);
   helper_->SendAcceleratedSurfaceBuffersSwapped(params);
   is_swap_buffers_send_pending_ = false;
 }
 
 void ImageTransportSurfaceFBO::SetRendererID(int renderer_id) {
   if (renderer_id)
     context_->share_group()->SetRendererID(renderer_id);
 }
 
-gfx::SwapResult ImageTransportSurfaceFBO::PostSubBuffer(int x,
-                                                        int y,
-                                                        int width,
-                                                        int height) {
+bool ImageTransportSurfaceFBO::PostSubBuffer(
+    int x, int y, int width, int height) {
   TRACE_EVENT0("gpu", "ImageTransportSurfaceFBO::PostSubBuffer");
-  return SwapBuffersInternal() ? gfx::SwapResult::SWAP_ACK
-                               : gfx::SwapResult::SWAP_FAILED;
+  return SwapBuffersInternal();
 }
 
 bool ImageTransportSurfaceFBO::SupportsPostSubBuffer() {
   return true;
 }
 
 gfx::Size ImageTransportSurfaceFBO::GetSize() {
   return pixel_size_;
 }
 
@@ skipping 182 matching lines @@
   }
 
   has_complete_framebuffer_ = true;
   storage_provider_->FrameSizeChanged(pixel_size_, scale_factor_);
 
   glBindTexture(texture_target, previous_texture_id);
   // The FBO remains bound for this GL context.
 }
 
 }  // namespace content