Move autofill related WebView{Delegate} methods into the WebKit API....

chrome/browser/renderer_host/render_view_host_delegate.h

Index: chrome/browser/renderer_host/render_view_host_delegate.h
===================================================================
--- chrome/browser/renderer_host/render_view_host_delegate.h	(revision 29209)
+++ chrome/browser/renderer_host/render_view_host_delegate.h	(working copy)
@@ -353,14 +353,14 @@
     // retrieves the calling RenderViewHost and then passes the vector of
     // suggestions to RenderViewHost::AutofillSuggestionsReturned.
     // Return true to indicate that AutofillSuggestionsReturned will be called.
-    virtual bool GetAutofillSuggestions(int request_id,
-                                        const std::wstring& field_name,
-                                        const std::wstring& user_text) = 0;
+    virtual bool GetAutofillSuggestions(int query_id,
+                                        const string16& field_name,
+                                        const string16& user_text) = 0;
 
     // Called when the user has indicated that she wants to remove the specified
     // autofill suggestion from the database.
-    virtual void RemoveAutofillEntry(const std::wstring& field_name,
-                                     const std::wstring& value) = 0;
+    virtual void RemoveAutofillEntry(const string16& field_name,
+                                     const string16& value) = 0;
   };
 
   // ---------------------------------------------------------------------------