Setting up external delegate calls to allow a future delegate to handle autofill

chrome/common/autofill_messages.h

Index: chrome/common/autofill_messages.h
diff --git a/chrome/common/autofill_messages.h b/chrome/common/autofill_messages.h
index c5a1ddd3e01f4de33d76cba945cbb5c29c57bb95..cd185f390e0483ddf6d11fa864898ec560d66abb 100644
--- a/chrome/common/autofill_messages.h
+++ b/chrome/common/autofill_messages.h
@@ -92,6 +92,11 @@ IPC_MESSAGE_ROUTED1(
 IPC_MESSAGE_ROUTED1(AutofillMsg_SelectAutofillSuggestionAtIndex,
                     int /* listIndex */)
 
+// Inform the renderer that the browser has an external delegate
+// that will display the Autofill popup.
+IPC_MESSAGE_ROUTED1(AutofillMsg_SetHasExternalDelegate,
+                    bool /* has_external_delegate */)
+
 // Autofill messages sent from the renderer to the browser.
 
 // Notification that forms have been seen that are candidates for
@@ -155,4 +160,15 @@ IPC_MESSAGE_ROUTED2(AutofillHostMsg_RemoveAutocompleteEntry,
 // Instructs the browser to show the Autofill dialog.
 IPC_MESSAGE_ROUTED0(AutofillHostMsg_ShowAutofillDialog)
 
+// Instructs the browser to hide the Autofill popup.
+IPC_MESSAGE_ROUTED0(AutofillHostMsg_HideAutofillPopup)
+
+// Messages to the Autofill delegate (which lives in the browser) from the
+// renderer.
 
+// Tells the external delegate where the element it is working on appears.
+IPC_MESSAGE_ROUTED4(AutofillHostMsg_AutofillElementBounds,
+                    int /* x */,
+                    int /* y */,
+                    int /* width */,
+                    int /* height */)