Allow space to accept keyword even when inline autocomplete is available.

chrome/browser/autocomplete/autocomplete_edit.h

Index: chrome/browser/autocomplete/autocomplete_edit.h
diff --git a/chrome/browser/autocomplete/autocomplete_edit.h b/chrome/browser/autocomplete/autocomplete_edit.h
index 6458f6c92e3a180f962607785fb3108bfac39192..c21cb9581655331f73249ddebce08ae5e2deffc4 100644
--- a/chrome/browser/autocomplete/autocomplete_edit.h
+++ b/chrome/browser/autocomplete/autocomplete_edit.h
@@ -379,8 +379,10 @@ class AutocompleteEditModel : public NotificationObserver {
   bool GetURLForText(const std::wstring& text, GURL* url) const;
 
   // Accepts current keyword if the user only typed a space at the end of
-  // |new_user_text|. Returns true if the current keyword is accepted.
-  bool MaybeAcceptKeywordBySpace(const std::wstring& new_user_text);
+  // |new_user_text| comparing to the |old_user_text|.
+  // Returns true if the current keyword is accepted.
+  bool MaybeAcceptKeywordBySpace(const std::wstring& old_user_text,
+                                 const std::wstring& new_user_text);
 
   // Checks if a given character is a valid space character for accepting
   // keyword.