Replace OVERRIDE and FINAL with override and final in content/test/[a-s]*

content/test/test_content_client.h

Index: content/test/test_content_client.h
diff --git a/content/test/test_content_client.h b/content/test/test_content_client.h
index 66431921e2d7f21d54601a2121794f8ab0fbed1d..9ae7d3b13ef32a01bf1d6da85d988018bdb0ac26 100644
--- a/content/test/test_content_client.h
+++ b/content/test/test_content_client.h
@@ -20,10 +20,10 @@ class TestContentClient : public ContentClient {
   virtual ~TestContentClient();
 
   // ContentClient:
-  virtual std::string GetUserAgent() const OVERRIDE;
+  virtual std::string GetUserAgent() const override;
   virtual base::StringPiece GetDataResource(
       int resource_id,
-      ui::ScaleFactor scale_factor) const OVERRIDE;
+      ui::ScaleFactor scale_factor) const override;
 
  private:
   ui::DataPack data_pack_;