Revert of Remove setVoiceSearchSupported part of EmbeddedSearch SearchBox API.

chrome/browser/ui/search/search_ipc_router.h

 // Copyright 2013 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_IPC_ROUTER_H_
 #define CHROME_BROWSER_UI_SEARCH_SEARCH_IPC_ROUTER_H_
 
 #include <vector>
 
 #include "base/gtest_prod_util.h"
@@ skipping 18 matching lines @@
 class SearchIPCRouter : public content::WebContentsObserver {
  public:
   // SearchIPCRouter calls its delegate in response to messages received from
   // the page.
   class Delegate {
    public:
     // Called upon determination of Instant API support in response to the page
     // load event.
     virtual void OnInstantSupportDetermined(bool supports_instant) = 0;
 
+    // Called upon determination of voice search API support.
+    virtual void OnSetVoiceSearchSupport(bool supports_voice_search) = 0;
+
     // Called when the page wants the omnibox to be focused. |state| specifies
     // the omnibox focus state.
     virtual void FocusOmnibox(OmniboxFocusState state) = 0;
 
     // Called when the page wants to navigate to |url|. Usually used by the
     // page to navigate to privileged destinations (e.g. chrome:// URLs) or to
     // navigate to URLs that are hidden from the page using Restricted IDs (rid
     // in the API).
     virtual void NavigateToURL(const GURL& url,
                                WindowOpenDisposition disposition,
@@ skipping 41 matching lines @@
 
   // An interface to be implemented by consumers of SearchIPCRouter objects to
   // decide whether to process the message received from the page, and vice
   // versa (decide whether to send messages to the page).
   class Policy {
    public:
     virtual ~Policy() {}
 
     // SearchIPCRouter calls these functions before sending/receiving messages
     // to/from the page.
+    virtual bool ShouldProcessSetVoiceSearchSupport() = 0;
     virtual bool ShouldProcessFocusOmnibox(bool is_active_tab) = 0;
     virtual bool ShouldProcessNavigateToURL(bool is_active_tab) = 0;
     virtual bool ShouldProcessDeleteMostVisitedItem() = 0;
     virtual bool ShouldProcessUndoMostVisitedDeletion() = 0;
     virtual bool ShouldProcessUndoAllMostVisitedDeletions() = 0;
     virtual bool ShouldProcessLogEvent() = 0;
     virtual bool ShouldProcessPasteIntoOmnibox(bool is_active_tab) = 0;
     virtual bool ShouldProcessChromeIdentityCheck() = 0;
     virtual bool ShouldProcessHistorySyncCheck() = 0;
     virtual bool ShouldSendSetPromoInformation() = 0;
     virtual bool ShouldSendSetDisplayInstantResults() = 0;
     virtual bool ShouldSendSetSuggestionToPrefetch() = 0;
     virtual bool ShouldSendSetOmniboxStartMargin() = 0;
     virtual bool ShouldSendSetInputInProgress(bool is_active_tab) = 0;
     virtual bool ShouldSendOmniboxFocusChanged() = 0;
     virtual bool ShouldSendMostVisitedItems() = 0;
     virtual bool ShouldSendThemeBackgroundInfo() = 0;
+    virtual bool ShouldSendToggleVoiceSearch() = 0;
     virtual bool ShouldSubmitQuery() = 0;
   };
 
   SearchIPCRouter(content::WebContents* web_contents, Delegate* delegate,
                   scoped_ptr<Policy> policy);
   ~SearchIPCRouter() override;
 
   // Tells the SearchIPCRouter that a new page in an Instant process committed.
   void OnNavigationEntryCommitted();
 
@@ skipping 28 matching lines @@
   // Tells the page that the omnibox focus has changed.
   void OmniboxFocusChanged(OmniboxFocusState state,
                            OmniboxFocusChangeReason reason);
 
   // Tells the renderer about the most visited items.
   void SendMostVisitedItems(const std::vector<InstantMostVisitedItem>& items);
 
   // Tells the renderer about the current theme background.
   void SendThemeBackgroundInfo(const ThemeBackgroundInfo& theme_info);
 
+  // Tells the page to toggle voice search.
+  void ToggleVoiceSearch();
+
   // 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();
 
  private:
   friend class SearchIPCRouterPolicyTest;
   friend class SearchIPCRouterTest;
   FRIEND_TEST_ALL_PREFIXES(SearchTabHelperTest,
                            DetermineIfPageSupportsInstant_Local);
   FRIEND_TEST_ALL_PREFIXES(SearchTabHelperTest,
                            DetermineIfPageSupportsInstant_NonLocal);
   FRIEND_TEST_ALL_PREFIXES(SearchTabHelperTest,
                            PageURLDoesntBelongToInstantRenderer);
   FRIEND_TEST_ALL_PREFIXES(SearchIPCRouterTest,
                            IgnoreMessageIfThePageIsNotActive);
   FRIEND_TEST_ALL_PREFIXES(SearchIPCRouterTest,
                            DoNotSendSetDisplayInstantResultsMsg);
   FRIEND_TEST_ALL_PREFIXES(SearchIPCRouterTest, HandleTabChangedEvents);
 
   // Overridden from contents::WebContentsObserver:
   bool OnMessageReceived(const IPC::Message& message) override;
 
   void OnInstantSupportDetermined(int page_seq_no, bool supports_instant) const;
+  void OnVoiceSearchSupportDetermined(int page_id,
+                                      bool supports_voice_search) const;
   void OnFocusOmnibox(int page_id, OmniboxFocusState state) const;
   void OnSearchBoxNavigate(int page_id,
                            const GURL& url,
                            WindowOpenDisposition disposition,
                            bool is_most_visited_item_url) const;
   void OnDeleteMostVisitedItem(int page_seq_no, const GURL& url) const;
   void OnUndoMostVisitedDeletion(int page_seq_no, const GURL& url) const;
   void OnUndoAllMostVisitedDeletions(int page_seq_no) const;
   void OnLogEvent(int page_seq_no,
                   NTPLoggingEventType event,
@@ skipping 29 matching lines @@
   // SearchIPCRouter to ensure that delayed IPC replies are ignored.
   int commit_counter_;
 
   // Set to true, when the tab corresponding to |this| instance is active.
   bool is_active_tab_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchIPCRouter);
 };
 
 #endif  // CHROME_BROWSER_UI_SEARCH_SEARCH_IPC_ROUTER_H_