gpu: Mailbox emulation with EGLImage

gpu/command_buffer/service/in_process_command_buffer.cc

Index: gpu/command_buffer/service/in_process_command_buffer.cc
diff --git a/gpu/command_buffer/service/in_process_command_buffer.cc b/gpu/command_buffer/service/in_process_command_buffer.cc
index c185aa99678693f939d398c8e6207e615d380330..dd598387260ec3f5c6dbce794f9c2f5b4f150e8c 100644
--- a/gpu/command_buffer/service/in_process_command_buffer.cc
+++ b/gpu/command_buffer/service/in_process_command_buffer.cc
@@ -30,6 +30,7 @@
 #include "gpu/command_buffer/service/gpu_control_service.h"
 #include "gpu/command_buffer/service/gpu_scheduler.h"
 #include "gpu/command_buffer/service/image_manager.h"
+#include "gpu/command_buffer/service/mailbox_manager.h"
 #include "gpu/command_buffer/service/transfer_buffer_manager.h"
 #include "ui/gfx/size.h"
 #include "ui/gl/gl_context.h"
@@ -172,10 +173,6 @@ bool WaitSyncPoint(uint32 sync_point) {
   return true;
 }
 
-void RetireSyncPoint(uint32 sync_point) {
-  g_sync_point_manager.Get().RetireSyncPoint(sync_point);
-}
-
 }  // anonyous namespace
 
 InProcessCommandBuffer::Service::Service() {}
@@ -621,10 +618,20 @@ void InProcessCommandBuffer::DestroyGpuMemoryBuffer(int32 id) {
 
 uint32 InProcessCommandBuffer::InsertSyncPoint() {
   uint32 sync_point = g_sync_point_manager.Get().GenerateSyncPoint();
-  QueueTask(base::Bind(&RetireSyncPoint, sync_point));
+  QueueTask(base::Bind(&InProcessCommandBuffer::RetireSyncPointOnGpuThread,
+                       base::Unretained(this),
+                       sync_point));
   return sync_point;
 }
 
+void InProcessCommandBuffer::RetireSyncPointOnGpuThread(uint32 sync_point) {
+  gles2::MailboxManager* mailbox_manager =
+      decoder_->GetContextGroup()->mailbox_manager();
+  if (mailbox_manager->UsesSync() && MakeCurrent())
+    mailbox_manager->PushTextureUpdates();
+  g_sync_point_manager.Get().RetireSyncPoint(sync_point);
+}
+
 void InProcessCommandBuffer::SignalSyncPoint(unsigned sync_point,
                                              const base::Closure& callback) {
   CheckSequencedThread();