Fix a bug in the implementation of DescheduleUntilFinishedCHROMIUM.

gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc b/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
index 2c20408b1ecc47c3bc8272bb7b2fae31dc74622d..3b43d9204ac4e39e78746819c2df3d0ea3cc1332 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
@@ -271,6 +271,12 @@ bool GLES2DecoderPassthroughImpl::HasMoreIdleWork() const {
 
 void GLES2DecoderPassthroughImpl::PerformIdleWork() {}
 
+bool GLES2DecoderPassthroughImpl::HasPollingWork() const {
+  return false;
+}
+
+void GLES2DecoderPassthroughImpl::PerformPollingWork() {}
+
 bool GLES2DecoderPassthroughImpl::GetServiceTextureId(
     uint32_t client_texture_id,
     uint32_t* service_texture_id) {