[Extensions] Change renderer-side web accessible resource determination

chrome/renderer/extensions/chrome_extensions_renderer_client.h

Index: chrome/renderer/extensions/chrome_extensions_renderer_client.h
diff --git a/chrome/renderer/extensions/chrome_extensions_renderer_client.h b/chrome/renderer/extensions/chrome_extensions_renderer_client.h
index 6bd77c5f99f7b284128c6e34b14dcfab9630d1af..6372f414703d3e04270c44d72f2bf8018e12821b 100644
--- a/chrome/renderer/extensions/chrome_extensions_renderer_client.h
+++ b/chrome/renderer/extensions/chrome_extensions_renderer_client.h
@@ -47,6 +47,8 @@ class ChromeExtensionsRendererClient
   bool IsIncognitoProcess() const override;
   int GetLowestIsolatedWorldId() const override;
   extensions::Dispatcher* GetDispatcher() override;
+  void OnExtensionAdded(const extensions::Extension& extension) override;
+  void OnExtensionRemoved(const extensions::ExtensionId& extension_id) override;
 
   // See ChromeContentRendererClient methods with the same names.
   void RenderThreadStarted();