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, 3 deletions

diff --git a/components/enhanced_bookmarks/image_store_ios_unittest.mm b/components/enhanced_bookmarks/image_store_ios_unittest.mm
index a22a366..4927645 100644
--- a/components/enhanced_bookmarks/image_store_ios_unittest.mm
+++ b/components/enhanced_bookmarks/image_store_ios_unittest.mm
@@ -106,15 +106,15 @@ template <class T>
 class ImageStoreUnitTestIOS : public PlatformTest {
  protected:
   ImageStoreUnitTestIOS() {}
-  virtual ~ImageStoreUnitTestIOS() {}
+  ~ImageStoreUnitTestIOS() override {}
 
-  virtual void SetUp() override {
+  void SetUp() override {
     bool success = temp_dir_.CreateUniqueTempDir();
     ASSERT_TRUE(success);
     store_.reset(CreateStore<T>(temp_dir_));
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     if (store_ && use_persistent_store())
       store_->ClearAll();
   }