Refactor and send voice interaction structure

content/browser/web_contents/web_contents_impl.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 CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 
 #include <stdint.h>
 
 #include <functional>
@@ skipping 214 matching lines @@
   void WasOccluded();
   void WasUnOccluded();
 
   // Broadcasts the mode change to all frames.
   void SetAccessibilityMode(AccessibilityMode mode);
 
   // Adds the given accessibility mode to the current accessibility mode
   // bitmap.
   void AddAccessibilityMode(AccessibilityMode mode);
 
-  // Request a one-time snapshot of the accessibility tree without changing
-  // the accessibility mode.
-  using AXTreeSnapshotCallback =
-      base::Callback<void(
-          const ui::AXTreeUpdate&)>;
-  void RequestAXTreeSnapshot(AXTreeSnapshotCallback callback);
-
   // Set a temporary zoom level for the frames associated with this WebContents.
   // If |is_temporary| is true, we are setting a new temporary zoom level,
   // otherwise we are clearing a previously set temporary zoom level.
   void SetTemporaryZoomLevel(double level, bool temporary_zoom_enabled);
 
   // Sets the zoom level for frames associated with this WebContents.
   void UpdateZoom(double level);
 
   // Sets the zoom level for frames associated with this WebContents if it
   // matches |host| and (if non-empty) |scheme|. Matching is done on the
@@ skipping 54 matching lines @@
   const base::string16& GetTitle() const override;
   void UpdateTitleForEntry(NavigationEntry* entry,
                            const base::string16& title) override;
   SiteInstanceImpl* GetSiteInstance() const override;
   SiteInstanceImpl* GetPendingSiteInstance() const override;
   bool IsLoading() const override;
   bool IsLoadingToDifferentDocument() const override;
   bool IsWaitingForResponse() const override;
   const net::LoadStateWithParam& GetLoadState() const override;
   const base::string16& GetLoadStateHost() const override;
+  void RequestAXTreeSnapshot(AXTreeSnapshotCallback callback) override;
   uint64_t GetUploadSize() const override;
   uint64_t GetUploadPosition() const override;
   const std::string& GetEncoding() const override;
   void IncrementCapturerCount(const gfx::Size& capture_size) override;
   void DecrementCapturerCount() override;
   int GetCapturerCount() const override;
   bool IsAudioMuted() const override;
   void SetAudioMuted(bool mute) override;
   bool IsConnectedToBluetoothDevice() const override;
   bool IsCrashed() const override;
@@ skipping 1231 matching lines @@
   // Adds/removes a callback called on creation of each new WebContents.
   static void AddCreatedCallbackForTesting(const CreatedCallback& callback);
   static void RemoveCreatedCallbackForTesting(const CreatedCallback& callback);
 
   DISALLOW_COPY_AND_ASSIGN(FriendWrapper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_