[Search] Store and recall search terms using NavigationEntry to improve search term extraction

chrome/browser/ui/toolbar/toolbar_model_impl.h

 // Copyright 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_TOOLBAR_TOOLBAR_MODEL_IMPL_H_
 #define CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_MODEL_IMPL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 19 matching lines @@
 class ToolbarModelImpl : public ToolbarModel {
  public:
   explicit ToolbarModelImpl(ToolbarModelDelegate* delegate);
   virtual ~ToolbarModelImpl();
 
   // Overriden from ToolbarModel.
   virtual string16 GetText(
       bool display_search_urls_as_search_terms) const OVERRIDE;
   virtual GURL GetURL() const OVERRIDE;
   virtual bool WouldReplaceSearchURLWithSearchTerms() const OVERRIDE;
+  virtual string16 GetSearchTermsFromNavigationEntry() const OVERRIDE;
   virtual SecurityLevel GetSecurityLevel() const OVERRIDE;
   virtual int GetIcon() const OVERRIDE;
   virtual string16 GetEVCertName() const OVERRIDE;
   virtual bool ShouldDisplayURL() const OVERRIDE;
   virtual void SetInputInProgress(bool value) OVERRIDE;
   virtual bool GetInputInProgress() const OVERRIDE;
 
   // Returns "<organization_name> [<country>]".
   static string16 GetEVCertName(const net::X509Certificate& cert);
 
@@ skipping 13 matching lines @@
 
   ToolbarModelDelegate* delegate_;
 
   // Whether the text in the location bar is currently being edited.
   bool input_in_progress_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(ToolbarModelImpl);
 };
 
 #endif  // CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_MODEL_IMPL_H_