Remove a variety of no-longer-used query params.

chrome/browser/ui/search/search_tab_helper.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_SEARCH_SEARCH_TAB_HELPER_H_
 #define CHROME_BROWSER_UI_SEARCH_SEARCH_TAB_HELPER_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 161 matching lines @@
   void OnLogMostVisitedNavigation(int position,
                                   const base::string16& provider) override;
   void PasteIntoOmnibox(const base::string16& text) override;
   void OnChromeIdentityCheck(const base::string16& identity) override;
   void OnHistorySyncCheck() override;
 
   // Overridden from InstantServiceObserver:
   void ThemeInfoChanged(const ThemeBackgroundInfo& theme_info) override;
   void MostVisitedItemsChanged(
       const std::vector<InstantMostVisitedItem>& items) override;
-  void OmniboxStartMarginChanged(int omnibox_start_margin) override;
 
   // Sets the mode of the model based on the current URL of web_contents().
   // Only updates the origin part of the mode if |update_origin| is true,
   // otherwise keeps the current origin. If |is_preloaded_ntp| is true, the mode
   // is set to NTP regardless of the current URL; this is used to ensure that
   // InstantController can bind InstantTab to new tab pages immediately.
   void UpdateMode(bool update_origin, bool is_preloaded_ntp);
 
   // Tells the renderer to determine if the page supports the Instant API, which
   // results in a call to OnInstantSupportDetermined() when the reply is
@@ skipping 39 matching lines @@
   SearchTabHelperDelegate* delegate_;
 
   // Function to check if the omnibox has focus. Tests use this to modify the
   // default behavior.
   OmniboxHasFocusFn omnibox_has_focus_fn_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchTabHelper);
 };
 
 #endif  // CHROME_BROWSER_UI_SEARCH_SEARCH_TAB_HELPER_H_