Refactor validation code so it can be modified at runtime....

gpu/command_buffer/service/gles2_cmd_validation.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Contains various validation functions for the GLES2 service.
 
 #ifndef GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_VALIDATION_H_
 #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_VALIDATION_H_
 
+#include <vector>
+#define GLES2_GPU_SERVICE 1
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 
 namespace gpu {
 namespace gles2 {
 
+// ValueValidator returns true if a value is valid.
+template <typename T>
+class ValueValidator {
+ public:
+  ValueValidator(const T* valid_values, int num_values) {
+    for (int ii = 0; ii < num_values; ++ii) {
+      AddValue(valid_values[ii]);
+    }
+  }
+
+  void AddValue(const T value) {
+    valid_values_.push_back(value);
+  }
+
+  bool IsValid(const T value) const {
+    return std::find(valid_values_.begin(), valid_values_.end(), value) !=
+           valid_values_.end();
+  }
+
+ private:
+  std::vector<T> valid_values_;
+};
+
+struct Validators {
+  Validators();
 #include "gpu/command_buffer/service/gles2_cmd_validation_autogen.h"
+};
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_VALIDATION_H_