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

components/dom_distiller/core/viewer_unittest.cc

Index: components/dom_distiller/core/viewer_unittest.cc
diff --git a/components/dom_distiller/core/viewer_unittest.cc b/components/dom_distiller/core/viewer_unittest.cc
index 35e242f53c8a5ecf2779577009c0d413b32f089a..2e7478a047abf9ca0e8f378bb4e08b7f2e126b59 100644
--- a/components/dom_distiller/core/viewer_unittest.cc
+++ b/components/dom_distiller/core/viewer_unittest.cc
@@ -17,7 +17,7 @@ const char kTestScheme[] = "myscheme";
 
 class FakeViewRequestDelegate : public ViewRequestDelegate {
  public:
-  virtual ~FakeViewRequestDelegate() {}
+  ~FakeViewRequestDelegate() override {}
   MOCK_METHOD1(OnArticleReady, void(const DistilledArticleProto* proto));
   MOCK_METHOD1(OnArticleUpdated,
                void(ArticleDistillationUpdate article_update));
@@ -26,17 +26,17 @@ class FakeViewRequestDelegate : public ViewRequestDelegate {
 class TestDomDistillerService : public DomDistillerServiceInterface {
  public:
   TestDomDistillerService() {}
-  virtual ~TestDomDistillerService() {}
+  ~TestDomDistillerService() override {}
 
   MOCK_CONST_METHOD0(GetSyncableService, syncer::SyncableService*());
   MOCK_METHOD3(AddToList,
                const std::string(const GURL&,
                                  DistillerPage*,
                                  const ArticleAvailableCallback&));
-  virtual const std::string AddToList(
+  const std::string AddToList(
       const GURL& url,
       scoped_ptr<DistillerPage> distiller_page,
-      const ArticleAvailableCallback& article_cb) {
+      const ArticleAvailableCallback& article_cb) override {
     return AddToList(url, distiller_page.get(), article_cb);
   }
   MOCK_METHOD1(HasEntry, bool(const std::string&));
@@ -45,32 +45,32 @@ class TestDomDistillerService : public DomDistillerServiceInterface {
   MOCK_METHOD1(AddObserver, void(DomDistillerObserver*));
   MOCK_METHOD1(RemoveObserver, void(DomDistillerObserver*));
   MOCK_METHOD0(ViewUrlImpl, ViewerHandle*());
-  virtual scoped_ptr<ViewerHandle> ViewUrl(
+  scoped_ptr<ViewerHandle> ViewUrl(
       ViewRequestDelegate*,
       scoped_ptr<DistillerPage> distiller_page,
-      const GURL&) {
+      const GURL&) override {
     return scoped_ptr<ViewerHandle>(ViewUrlImpl());
   }
   MOCK_METHOD0(ViewEntryImpl, ViewerHandle*());
-  virtual scoped_ptr<ViewerHandle> ViewEntry(
+  scoped_ptr<ViewerHandle> ViewEntry(
       ViewRequestDelegate*,
       scoped_ptr<DistillerPage> distiller_page,
-      const std::string&) {
+      const std::string&) override {
     return scoped_ptr<ViewerHandle>(ViewEntryImpl());
   }
   MOCK_METHOD0(RemoveEntryImpl, ArticleEntry*());
-  virtual scoped_ptr<ArticleEntry> RemoveEntry(const std::string&) {
+  scoped_ptr<ArticleEntry> RemoveEntry(const std::string&) override {
     return scoped_ptr<ArticleEntry>(RemoveEntryImpl());
   }
-  virtual scoped_ptr<DistillerPage> CreateDefaultDistillerPage(
-      const gfx::Size& render_view_size) {
+  scoped_ptr<DistillerPage> CreateDefaultDistillerPage(
+      const gfx::Size& render_view_size) override {
     return scoped_ptr<DistillerPage>();
   }
-  virtual scoped_ptr<DistillerPage> CreateDefaultDistillerPageWithHandle(
-      scoped_ptr<SourcePageHandle> handle) {
+  scoped_ptr<DistillerPage> CreateDefaultDistillerPageWithHandle(
+      scoped_ptr<SourcePageHandle> handle) override {
     return scoped_ptr<DistillerPage>();
   }
-  virtual DistilledPagePrefs* GetDistilledPagePrefs() override;
+  DistilledPagePrefs* GetDistilledPagePrefs() override;
 };
 
 class DomDistillerViewerTest : public testing::Test {