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

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 manually generated using a regex and a text editor.

BUG=417463

Review URL: https://codereview.chromium.org/1056633004

Cr-Commit-Position: refs/heads/master@{#327312}

1 files changed, 3 insertions, 4 deletions

diff --git a/components/webdata/common/web_data_results.h b/components/webdata/common/web_data_results.h
index 6353db1..d6d07fd 100644
--- a/components/webdata/common/web_data_results.h
+++ b/components/webdata/common/web_data_results.h
@@ -67,7 +67,7 @@ template <class T> class WDResult : public WDTypedResult {
       : WDTypedResult(type), value_(v) {
   }
 
-  virtual ~WDResult() {
+  ~WDResult() override {
   }
 
   // Return a single value result.
@@ -91,11 +91,10 @@ template <class T> class WDDestroyableResult : public WDResult<T> {
         callback_(callback) {
   }
 
-  virtual ~WDDestroyableResult() {
+  ~WDDestroyableResult() override {
   }
 
-
-  virtual void Destroy()  override {
+  void Destroy() override {
     if (!callback_.is_null()) {
       callback_.Run(this);
     }