Add future sync point methods to ContextSupport.

gpu/command_buffer/client/gles2_implementation.cc

Index: gpu/command_buffer/client/gles2_implementation.cc
diff --git a/gpu/command_buffer/client/gles2_implementation.cc b/gpu/command_buffer/client/gles2_implementation.cc
index 716fb55fbc2eaac205d249c20f9bbd4a2e761b1a..9b91923aaa840e9b9c87222005f4289134f237ed 100644
--- a/gpu/command_buffer/client/gles2_implementation.cc
+++ b/gpu/command_buffer/client/gles2_implementation.cc
@@ -3991,6 +3991,21 @@ GLuint GLES2Implementation::InsertSyncPointCHROMIUM() {
   return gpu_control_->InsertSyncPoint();
 }
 
+GLuint GLES2Implementation::InsertFutureSyncPointCHROMIUM() {
+  GPU_CLIENT_SINGLE_THREAD_CHECK();
+  GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glInsertFutureSyncPointCHROMIUM");

[piman, 2014/07/11 22:24:32]

nit: can we add a DCHECK(capabilities_.future_sync_points)

+  helper_->CommandBufferHelper::Flush();
+  return gpu_control_->InsertFutureSyncPoint();
+}
+
+void GLES2Implementation::RetireSyncPointCHROMIUM(GLuint sync_point) {
+  GPU_CLIENT_SINGLE_THREAD_CHECK();
+  GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glRetireSyncPointCHROMIUM("
+                     << sync_point << ")");

[piman, 2014/07/11 22:24:32]

nit: DCHECK here too.

+  helper_->CommandBufferHelper::Flush();
+  gpu_control_->RetireSyncPoint(sync_point);
+}
+
 GLuint GLES2Implementation::CreateImageCHROMIUMHelper(GLsizei width,
                                                       GLsizei height,
                                                       GLenum internalformat,