Revert of Remove setVoiceSearchSupported part of EmbeddedSearch SearchBox API.

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/basictypes.h"
@@ skipping 72 matching lines @@
   // Tells the page that the user pressed Enter in the omnibox.
   void Submit(const base::string16& text,
               const EmbeddedSearchRequestParams& params);
 
   // Called when the tab corresponding to |this| instance is activated.
   void OnTabActivated();
 
   // Called when the tab corresponding to |this| instance is deactivated.
   void OnTabDeactivated();
 
+  // Tells the page to toggle voice search.
+  void ToggleVoiceSearch();
+
   // Returns true if the underlying page is a search results page.
   bool IsSearchResultsPage();
 
   void set_delegate(SearchTabHelperDelegate* delegate) { delegate_ = delegate; }
 
  private:
   friend class content::WebContentsUserData<SearchTabHelper>;
   friend class InstantPageTest;
   friend class SearchIPCRouterPolicyTest;
   friend class SearchIPCRouterTest;
@@ skipping 45 matching lines @@
   void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) override;
   void DidFinishLoad(content::RenderFrameHost* render_frame_host,
                      const GURL& validated_url) override;
   void NavigationEntryCommitted(
       const content::LoadCommittedDetails& load_details) override;
 
   // Overridden from SearchIPCRouter::Delegate:
   void OnInstantSupportDetermined(bool supports_instant) override;
+  void OnSetVoiceSearchSupport(bool supports_voice_search) override;
   void FocusOmnibox(OmniboxFocusState state) override;
   void NavigateToURL(const GURL& url,
                      WindowOpenDisposition disposition,
                      bool is_most_visited_item_url) override;
   void OnDeleteMostVisitedItem(const GURL& url) override;
   void OnUndoMostVisitedDeletion(const GURL& url) override;
   void OnUndoAllMostVisitedDeletions() override;
   void OnLogEvent(NTPLoggingEventType event, base::TimeDelta time) override;
   void OnLogMostVisitedImpression(int position,
                                   const base::string16& provider) override;
@@ skipping 56 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_