Add OVERRIDE to chrome/browser/extensions/.

chrome/browser/extensions/extension_metrics_module.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_METRICS_MODULE_H__
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_METRICS_MODULE_H__
 #pragma once
 
 #include <string>
 
 #include "base/metrics/histogram.h"
 #include "chrome/browser/extensions/extension_function.h"
 
 class MetricsSetEnabledFunction : public SyncExtensionFunction {
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.metrics.setEnabled")
  protected:
-  virtual bool RunImpl();
+  virtual bool RunImpl() OVERRIDE;
 };
 
 class MetricsGetEnabledFunction : public SyncExtensionFunction {
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.metrics.getEnabled")
  protected:
-  virtual bool RunImpl();
+  virtual bool RunImpl() OVERRIDE;
 };
 
 class MetricsRecordUserActionFunction : public SyncExtensionFunction {
-  virtual bool RunImpl();
+  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.metrics.recordUserAction")
 };
 
 class MetricsHistogramHelperFunction : public SyncExtensionFunction {
  protected:
   bool GetNameAndSample(std::string* name, int* sample);
   virtual bool RecordValue(const std::string& name,
                            base::Histogram::ClassType type,
                            int min, int max, size_t buckets, int sample);
 };
 
 class MetricsRecordValueFunction : public MetricsHistogramHelperFunction {
-  virtual bool RunImpl();
+  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.metrics.recordValue")
 };
 
 class MetricsRecordPercentageFunction : public MetricsHistogramHelperFunction {
-  virtual bool RunImpl();
+  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.metrics.recordPercentage")
 };
 
 class MetricsRecordCountFunction : public MetricsHistogramHelperFunction {
-  virtual bool RunImpl();
+  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.metrics.recordCount")
 };
 
 class MetricsRecordSmallCountFunction : public MetricsHistogramHelperFunction {
-  virtual bool RunImpl();
+  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.metrics.recordSmallCount")
 };
 
 class MetricsRecordMediumCountFunction : public MetricsHistogramHelperFunction {
-  virtual bool RunImpl();
+  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.metrics.recordMediumCount")
 };
 
 class MetricsRecordTimeFunction : public MetricsHistogramHelperFunction {
-  virtual bool RunImpl();
+  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.metrics.recordTime")
 };
 
 class MetricsRecordMediumTimeFunction : public MetricsHistogramHelperFunction {
-  virtual bool RunImpl();
+  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.metrics.recordMediumTime")
 };
 
 class MetricsRecordLongTimeFunction : public MetricsHistogramHelperFunction {
-  virtual bool RunImpl();
+  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.metrics.recordLongTime")
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_METRICS_MODULE_H__