Mojo: more idiomatic C++ bindings

chrome/browser/ui/webui/omnibox/omnibox_ui_handler.h

 // Copyright (c) 2012 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_UI_WEBUI_OMNIBOX_OMNIBOX_UI_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OMNIBOX_OMNIBOX_UI_HANDLER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 20 matching lines @@
 
   // AutocompleteControllerDelegate overrides:
   virtual void OnResultChanged(bool default_match_changed) OVERRIDE;
 
   // ErrorHandler overrides:
   virtual void OnConnectionError() OVERRIDE {
     // TODO(darin): How should we handle connection error?
   }
 
   // OmniboxUIHandlerMojo overrides:
-  virtual void StartOmniboxQuery(const mojo::String& input_string,
+  virtual void StartOmniboxQuery(mojo::String input_string,
                                  int32_t cursor_position,
                                  bool prevent_inline_autocomplete,
                                  bool prefer_keyword,
                                  int32_t page_classification) OVERRIDE;
 
  private:
   // Looks up whether the hostname is a typed host (i.e., has received
   // typed visits).  Return true if the lookup succeeded; if so, the
   // value of |is_typed_host| is set appropriately.
   bool LookupIsTypedHost(const base::string16& host, bool* is_typed_host) const;
@@ skipping 14 matching lines @@
   // The input used when starting the AutocompleteController.
   AutocompleteInput input_;
 
   // The Profile* handed to us in our constructor.
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(OmniboxUIHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OMNIBOX_OMNIBOX_UI_HANDLER_H_