Standardize usage of virtual/override/final specifiers in components/.

components/translate/content/renderer/renderer_cld_data_provider.h

Index: components/translate/content/renderer/renderer_cld_data_provider.h
diff --git a/components/translate/content/renderer/renderer_cld_data_provider.h b/components/translate/content/renderer/renderer_cld_data_provider.h
index b5ae4b77a447f932a39af5cc4af4377085647964..b4ba69b2c407cc4bf60888b35a8c2c2905d526bb 100644
--- a/components/translate/content/renderer/renderer_cld_data_provider.h
+++ b/components/translate/content/renderer/renderer_cld_data_provider.h
@@ -40,7 +40,7 @@ class RendererCldDataProvider : public IPC::Listener {
   // This method is defined as virtual in order to force the implementation to
   // define the specific IPC message(s) that it handles.
   // The default implementation does nothing and returns false.
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
 
   // Invoked by the renderer process to request that CLD data be obtained and
   // that CLD be initialized with it. The implementation is expected to