Update {virtual,override,final} to follow C++11 style.

Update {virtual,override,final} to follow C++11 style.

The Google style guide states that only one of {virtual,override,final}
should be used for each declaration, since override implies virtual and
final implies both virtual and override.

This patch was automatically generated with an OS=android build using a
variation of https://codereview.chromium.org/598073004.

BUG=417463
R=pkasting@chromium.org

Committed: https://crrev.com/361fdb39bdfcf68edd7df903103a399ea7a4f204
Cr-Commit-Position: refs/heads/master@{#314486}

[Peter Kasting, 2015-02-04 00:59:53]

Rubber-stamp LGTM

[dcheng, 2015-02-04 01:12:06]

The CQ bit was checked by dcheng@chromium.org

[commit-bot: I haz the power, 2015-02-04 01:12:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/900733003/1

[commit-bot: I haz the power, 2015-02-04 01:50:07]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-02-04 01:50:09]

Failed to apply patch for chrome/browser/ui/android/infobars/confirm_infobar.h:
While running git apply --index -3 -p1;
  error: patch failed: chrome/browser/ui/android/infobars/confirm_infobar.h:13
  Falling back to three-way merge...
  Applied patch to 'chrome/browser/ui/android/infobars/confirm_infobar.h' with
conflicts.
  U chrome/browser/ui/android/infobars/confirm_infobar.h

Patch:       chrome/browser/ui/android/infobars/confirm_infobar.h
Index: chrome/browser/ui/android/infobars/confirm_infobar.h
diff --git a/chrome/browser/ui/android/infobars/confirm_infobar.h
b/chrome/browser/ui/android/infobars/confirm_infobar.h
index
55e43d4120b645d4e2cf7476a3f54db3ea30a4de..36d109f74baccc21b0de3ff6afa4ce449aed240f
100644
--- a/chrome/browser/ui/android/infobars/confirm_infobar.h
+++ b/chrome/browser/ui/android/infobars/confirm_infobar.h
@@ -13,15 +13,14 @@
 class ConfirmInfoBar : public InfoBarAndroid {
  public:
   explicit ConfirmInfoBar(scoped_ptr<ConfirmInfoBarDelegate> delegate);
-  virtual ~ConfirmInfoBar();
+  ~ConfirmInfoBar() override;
 
  private:
   // InfoBarAndroid:
-  virtual base::android::ScopedJavaLocalRef<jobject> CreateRenderInfoBar(
+  base::android::ScopedJavaLocalRef<jobject> CreateRenderInfoBar(
       JNIEnv* env) override;
-  virtual void OnLinkClicked(JNIEnv* env, jobject obj) override;
-  virtual void ProcessButton(int action,
-                             const std::string& action_value) override;
+  void OnLinkClicked(JNIEnv* env, jobject obj) override;
+  void ProcessButton(int action, const std::string& action_value) override;
 
   base::string16 GetTextFor(ConfirmInfoBarDelegate::InfoBarButton button);

[commit-bot: I haz the power, 2015-02-04 01:50:30]

The CQ bit was unchecked by commit-bot@chromium.org

[dcheng, 2015-02-04 02:07:29]

New patchsets have been uploaded after l-g-t-m from pkasting@chromium.org

[dcheng, 2015-02-04 02:07:51]

The CQ bit was checked by dcheng@chromium.org

[commit-bot: I haz the power, 2015-02-04 02:08:40]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/900733003/20001

[commit-bot: I haz the power, 2015-02-04 02:56:40]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-02-04 02:58:42]

Patchset 2 (id:??) landed as
https://crrev.com/361fdb39bdfcf68edd7df903103a399ea7a4f204
Cr-Commit-Position: refs/heads/master@{#314486}