Remove Downcasting RVContextMenuBase in ContextMenuDeleagate implementations.

chrome/browser/renderer_context_menu/render_view_context_menu_test_util.h

Index: chrome/browser/renderer_context_menu/render_view_context_menu_test_util.h
diff --git a/chrome/browser/renderer_context_menu/render_view_context_menu_test_util.h b/chrome/browser/renderer_context_menu/render_view_context_menu_test_util.h
index 72522e29ac7e061b4a30027a3f8319ef500f5d76..6ec45ec6b5bd693ea5bf61e7385d8a48ff3e7e22 100644
--- a/chrome/browser/renderer_context_menu/render_view_context_menu_test_util.h
+++ b/chrome/browser/renderer_context_menu/render_view_context_menu_test_util.h
@@ -37,6 +37,8 @@ class TestRenderViewContextMenu : public RenderViewContextMenu {
                                            const GURL& link_url,
                                            const GURL& frame_url);
 
+  void CalculateScreenCoordinatesInParams() override {}
+
   // Implementation of pure virtuals in RenderViewContextMenu.
   bool GetAcceleratorForCommandId(int command_id,
                                   ui::Accelerator* accelerator) override;
@@ -57,6 +59,8 @@ class TestRenderViewContextMenu : public RenderViewContextMenu {
   extensions::ContextMenuMatcher& extension_items() { return extension_items_; }
 #endif
 
+  void Show() override {}
+
  private:
   DISALLOW_COPY_AND_ASSIGN(TestRenderViewContextMenu);
 };