Revert 171569 as it broke some browser_tests on win_aura.

content/browser/renderer_host/render_widget_host_view_gtk.cc

Index: content/browser/renderer_host/render_widget_host_view_gtk.cc
===================================================================
--- content/browser/renderer_host/render_widget_host_view_gtk.cc	(revision 171661)
+++ content/browser/renderer_host/render_widget_host_view_gtk.cc	(working copy)
@@ -1057,14 +1057,14 @@
     const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
     int gpu_host_id) {
   RenderWidgetHostImpl::AcknowledgeBufferPresent(
-      params.route_id, gpu_host_id, params.surface_handle, 0);
+      params.route_id, gpu_host_id, true, 0);
 }
 
 void RenderWidgetHostViewGtk::AcceleratedSurfacePostSubBuffer(
     const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
     int gpu_host_id) {
   RenderWidgetHostImpl::AcknowledgeBufferPresent(
-      params.route_id, gpu_host_id, params.surface_handle, 0);
+      params.route_id, gpu_host_id, true, 0);
 }
 
 void RenderWidgetHostViewGtk::AcceleratedSurfaceSuspend() {