Chromeos: virtual destructors should have virtual keyword (part 3).

Nu functionality change: virtual is only added to destructors
that are already implicitly virtual.

BUG=83408
TEST=chromiumos clang bot goes green
TBR=battre

Review URL: http://codereview.chromium.org/6979010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@86615 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chromeos/panels/panel_scroller.h

@@ -18,7 +18,7 @@ class PanelScrollerHeader;
 class PanelScroller : public views::View, public ui::AnimationDelegate {
  public:
   PanelScroller();
-  ~PanelScroller();
+  virtual ~PanelScroller();
 
   static PanelScroller* CreateWindow();
 
@@ -66,4 +66,3 @@ class PanelScroller : public views::View, public ui::AnimationDelegate {
 };
 
 #endif  // CHROME_BROWSER_CHROMEOS_PANELS_PANEL_SCROLLER_H_
-

chrome/browser/ui/webui/chromeos/imageburner_ui.h

@@ -139,7 +139,7 @@ class ImageBurnResourceManager
   friend struct DefaultSingletonTraits<ImageBurnResourceManager>;
 
   ImageBurnResourceManager();
-  ~ImageBurnResourceManager();
+  virtual ~ImageBurnResourceManager();
 
   FilePath image_dir_;
   FilePath config_file_path_;

views/controls/menu/menu_controller.h

@@ -228,7 +228,7 @@ class MenuController : public MessageLoopForUI::Dispatcher {
   // Creates a MenuController. If blocking is true, Run blocks the caller
   explicit MenuController(bool blocking);
 
-  ~MenuController();
+  virtual ~MenuController();
 
   // If there is a hot tracked view AcceleratorPressed is invoked on it and
   // true is returned.

views/controls/textfield/native_textfield_gtk.h

@@ -19,7 +19,7 @@ class NativeTextfieldGtk : public NativeControlGtk,
                            public NativeTextfieldWrapper {
  public:
   explicit NativeTextfieldGtk(Textfield* parent);
-  ~NativeTextfieldGtk();
+  virtual ~NativeTextfieldGtk();
 
   // Returns the textfield this NativeTextfieldGtk wraps.
   Textfield* textfield() const { return textfield_; }