Add a command to lose the context

gpu/command_buffer/common/gles2_cmd_format_test_autogen.h

Index: gpu/command_buffer/common/gles2_cmd_format_test_autogen.h
diff --git a/gpu/command_buffer/common/gles2_cmd_format_test_autogen.h b/gpu/command_buffer/common/gles2_cmd_format_test_autogen.h
index 54795a77193007168533c32c36e04c6962571ce5..be076cd8c760fdf8c428164293ad75ca5b2499bb 100644
--- a/gpu/command_buffer/common/gles2_cmd_format_test_autogen.h
+++ b/gpu/command_buffer/common/gles2_cmd_format_test_autogen.h
@@ -4364,5 +4364,16 @@ TEST_F(GLES2FormatTest, DiscardFramebufferEXTImmediate) {
   // TODO(gman): Check that data was inserted;
 }
 
+TEST_F(GLES2FormatTest, LoseContextCHROMIUM) {
+  LoseContextCHROMIUM& cmd = *GetBufferAs<LoseContextCHROMIUM>();
+  void* next_cmd = cmd.Set(
+      &cmd);
+  EXPECT_EQ(static_cast<uint32>(LoseContextCHROMIUM::kCmdId),
+            cmd.header.command);
+  EXPECT_EQ(sizeof(cmd), cmd.header.size * 4u);
+  CheckBytesWrittenMatchesExpectedSize(
+      next_cmd, sizeof(cmd));
+}
+
 #endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_FORMAT_TEST_AUTOGEN_H_