Linux/ChromeOS Chromium style checker cleanup, chrome/browser edition.

chrome/browser/gpu/chrome_gpu_util.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/gpu/chrome_gpu_util.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/version.h"
@@ skipping 39 matching lines @@
     if (installed_) {
       BrowserList::RemoveObserver(this);
       installed_ = false;
     }
   }
 
  private:
   BrowserMonitor() : num_browsers_(0), installed_(false) {
   }
 
-  ~BrowserMonitor() {
+  virtual ~BrowserMonitor() {
   }
 
   // BrowserListObserver implementation.
   virtual void OnBrowserAdded(Browser* browser) OVERRIDE {
     if (browser->type() == Browser::TYPE_TABBED)
       content::GpuDataManager::GetInstance()->SetWindowCount(++num_browsers_);
   }
 
   virtual void OnBrowserRemoved(Browser* browser) OVERRIDE {
     if (browser->type() == Browser::TYPE_TABBED)
@@ skipping 106 matching lines @@
 
   bool force_compositing = (trial->group() == force_compositing_group);
   bool thread = (trial->group() == thread_group);
   UMA_HISTOGRAM_BOOLEAN("GPU.InForceCompositingModeFieldTrial",
                         force_compositing);
   UMA_HISTOGRAM_BOOLEAN("GPU.InCompositorThreadFieldTrial", thread);
 }
 
 }  // namespace gpu_util;