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

chrome/browser/autocomplete/autocomplete_edit.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_H_
 #pragma once
 
 #include "base/string16.h"
 #include "chrome/browser/autocomplete/autocomplete_match.h"
@@ skipping 361 matching lines @@
 
   // Returns true if |text| (which is display text in the current context)
   // parses as a URL, and in that case sets |url| to the calculated URL.
   // Subtle note: This ignores the desired_tld_ (unlike GetDataForURLExport()
   // and CurrentTextIsURL()).  The view needs this because it calls this
   // function during copy handling, when the control key is down to trigger the
   // copy.
   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.
   static bool IsSpaceCharForAcceptingKeyword(wchar_t c);
 
   AutocompleteEditView* view_;
 
   AutocompletePopupModel* popup_;
 
   AutocompleteEditController* controller_;
@@ skipping 86 matching lines @@
   mutable GURL paste_and_go_url_;
   mutable PageTransition::Type paste_and_go_transition_;
   mutable GURL paste_and_go_alternate_nav_url_;
 
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(AutocompleteEditModel);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_H_