Add more of the server-side plumbing for extension APIs. Also

chrome/common/render_messages_internal.h

Index: chrome/common/render_messages_internal.h
diff --git a/chrome/common/render_messages_internal.h b/chrome/common/render_messages_internal.h
index 8cd2d33cd0cb47d7813969a9ff5f8f3f178da99c..65eaa60349a1d50aafcf440b2261503a6adb9eeb 100644
--- a/chrome/common/render_messages_internal.h
+++ b/chrome/common/render_messages_internal.h
@@ -530,6 +530,10 @@ IPC_BEGIN_MESSAGES(View)
                       std::string /* message */,
                       int /* channel_id */)
 
+  // Tell the renderer process all known extension function names.
+  IPC_MESSAGE_CONTROL1(ViewMsg_Extension_SetFunctionNames,
+                       std::vector<std::string>)
+
   // Changes the text direction of a selected input field.
   // * direction (int)
   //   Represents the new text direction.