Add service registration for Mojo services defined under chrome/

extensions/browser/extensions_browser_client.h

Index: extensions/browser/extensions_browser_client.h
diff --git a/extensions/browser/extensions_browser_client.h b/extensions/browser/extensions_browser_client.h
index 0cf646682a22887639c40acf6f03296fff3b8497..49d00dbf197847f3a02ada86a5d8b89e2084b2d3 100644
--- a/extensions/browser/extensions_browser_client.h
+++ b/extensions/browser/extensions_browser_client.h
@@ -22,6 +22,7 @@ class ListValue;
 
 namespace content {
 class BrowserContext;
+class RenderFrameHost;
 class WebContents;
 }
 
@@ -176,6 +177,10 @@ class ExtensionsBrowserClient {
   virtual void RegisterExtensionFunctions(
       ExtensionFunctionRegistry* registry) const = 0;
 
+  // Registers Mojo services for a RenderFrame.
+  virtual void RegisterMojoServices(content::RenderFrameHost* render_frame_host,
+                                    const Extension* extension) const = 0;
+
   // Creates a RuntimeAPIDelegate responsible for handling extensions
   // management-related events such as update and installation on behalf of the
   // core runtime API implementation.