During virtual context switches only restore texture units that have changed from the previous cont…

gpu/command_buffer/service/gl_state_restorer_impl.cc

Index: gpu/command_buffer/service/gl_state_restorer_impl.cc
diff --git a/gpu/command_buffer/service/gl_state_restorer_impl.cc b/gpu/command_buffer/service/gl_state_restorer_impl.cc
index 7b3c5ed384148318cde872d3a1c343ccb488feab..5493743d9e79157d069dd6876bb1d09703e4a5cb 100644
--- a/gpu/command_buffer/service/gl_state_restorer_impl.cc
+++ b/gpu/command_buffer/service/gl_state_restorer_impl.cc
@@ -21,9 +21,9 @@ bool GLStateRestorerImpl::IsInitialized() {
   return decoder_->initialized();
 }
 
-void GLStateRestorerImpl::RestoreState() {
+void GLStateRestorerImpl::RestoreState(const gles2::ContextState* prev_state) {
   DCHECK(decoder_.get());
-  decoder_->RestoreState();
+  decoder_->RestoreState(prev_state);
 }
 
 void GLStateRestorerImpl::RestoreAllTextureUnitBindings() {
@@ -36,4 +36,9 @@ void GLStateRestorerImpl::RestoreFramebufferBindings() {
   decoder_->RestoreFramebufferBindings();
 }
 
+const gles2::ContextState* GLStateRestorerImpl::GetContextState() {
+  DCHECK(decoder_.get());
+  return decoder_->GetContextState();
+}
+
 }  // namespace gpu