Revert 258122 "gpu: Allow fences to check whether a flush has oc..."

trunk/src/ui/gl/gl_context.cc

Index: trunk/src/ui/gl/gl_context.cc
===================================================================
--- trunk/src/ui/gl/gl_context.cc	(revision 258964)
+++ trunk/src/ui/gl/gl_context.cc	(working copy)
@@ -26,20 +26,6 @@
     current_real_context_ = LAZY_INSTANCE_INITIALIZER;
 }  // namespace
 
-GLContext::FlushEvent::FlushEvent() {
-}
-
-GLContext::FlushEvent::~FlushEvent() {
-}
-
-void GLContext::FlushEvent::Signal() {
-  flag_.Set();
-}
-
-bool GLContext::FlushEvent::IsSignaled() {
-  return flag_.IsSet();
-}
-
 GLContext::GLContext(GLShareGroup* share_group) : share_group_(share_group) {
   if (!share_group_.get())
     share_group_ = new GLShareGroup;
@@ -54,13 +40,6 @@
   }
 }
 
-scoped_refptr<GLContext::FlushEvent> GLContext::SignalFlush() {
-  DCHECK(IsCurrent(NULL));
-  scoped_refptr<FlushEvent> flush_event = new FlushEvent();
-  flush_events_.push_back(flush_event);
-  return flush_event;
-}
-
 bool GLContext::GetTotalGpuMemory(size_t* bytes) {
   DCHECK(bytes);
   *bytes = 0;
@@ -193,12 +172,6 @@
   SetGLToRealGLApi();
 }
 
-void GLContext::OnFlush() {
-  for (size_t n = 0; n < flush_events_.size(); n++)
-    flush_events_[n]->Signal();
-  flush_events_.clear();
-}
-
 GLContextReal::GLContextReal(GLShareGroup* share_group)
     : GLContext(share_group) {}