gpu_fuzzer: Destroy the command decoder before the context.

gpu/command_buffer/tests/fuzzer_main.cc

Index: gpu/command_buffer/tests/fuzzer_main.cc
diff --git a/gpu/command_buffer/tests/fuzzer_main.cc b/gpu/command_buffer/tests/fuzzer_main.cc
index 87111b4fe207689e9b43fbbab7bd5c28ca4f833a..557b228cfaa6916c3c95a56bb844c2049ee95a03 100644
--- a/gpu/command_buffer/tests/fuzzer_main.cc
+++ b/gpu/command_buffer/tests/fuzzer_main.cc
@@ -190,12 +190,12 @@ class CommandBufferSetup {
   }
 
   void ResetDecoder() {
+    decoder_->Destroy(true);
+    decoder_.reset();
     if (recreate_context_) {
       context_->ReleaseCurrent(nullptr);
       context_ = nullptr;
     }
-    decoder_->Destroy(true);
-    decoder_.reset();
     command_buffer_.reset();
   }