Chromecast: virtual/override cleanup.

chromecast/common/cast_content_client.h

Index: chromecast/common/cast_content_client.h
diff --git a/chromecast/common/cast_content_client.h b/chromecast/common/cast_content_client.h
index 3a4d61d71f74c3bf4764d1abe20d7d8efa748246..8289f41b34fc477b3deeecb65832b96e17a3f6f0 100644
--- a/chromecast/common/cast_content_client.h
+++ b/chromecast/common/cast_content_client.h
@@ -14,17 +14,17 @@ std::string GetUserAgent();
 
 class CastContentClient : public content::ContentClient {
  public:
-  virtual ~CastContentClient();
+  ~CastContentClient() override;
 
   // content::ContentClient implementation:
-  virtual std::string GetUserAgent() const override;
-  virtual base::string16 GetLocalizedString(int message_id) const override;
-  virtual base::StringPiece GetDataResource(
+  std::string GetUserAgent() const override;
+  base::string16 GetLocalizedString(int message_id) const override;
+  base::StringPiece GetDataResource(
       int resource_id,
       ui::ScaleFactor scale_factor) const override;
-  virtual base::RefCountedStaticMemory* GetDataResourceBytes(
+  base::RefCountedStaticMemory* GetDataResourceBytes(
       int resource_id) const override;
-  virtual gfx::Image& GetNativeImageNamed(int resource_id) const override;
+  gfx::Image& GetNativeImageNamed(int resource_id) const override;
 };
 
 }  // namespace shell