Restrict CM API interface request and message dispatch.

chrome/browser/chrome_content_browser_client.h

Index: chrome/browser/chrome_content_browser_client.h
diff --git a/chrome/browser/chrome_content_browser_client.h b/chrome/browser/chrome_content_browser_client.h
index a91a3b0a81e72c26bd6496c8083e366c48a6d3ed..93e6591296a9843876b8e751adfe863244a89850 100644
--- a/chrome/browser/chrome_content_browser_client.h
+++ b/chrome/browser/chrome_content_browser_client.h
@@ -285,6 +285,10 @@ class ChromeContentBrowserClient : public content::ContentBrowserClient {
       const service_manager::BindSourceInfo& source_info,
       const std::string& interface_name,
       mojo::ScopedMessagePipeHandle interface_pipe) override;
+  bool BindAssociatedInterfaceRequestFromFrame(
+      content::RenderFrameHost* render_frame_host,
+      const std::string& interface_name,
+      mojo::ScopedInterfaceEndpointHandle* handle) override;
   void BindInterfaceRequest(
       const service_manager::BindSourceInfo& source_info,
       const std::string& interface_name,