aw: Remove kDisablePageVisibility

android_webview/renderer/aw_content_renderer_client.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 ANDROID_WEBVIEW_RENDERER_AW_CONTENT_RENDERER_CLIENT_H_
 #define ANDROID_WEBVIEW_RENDERER_AW_CONTENT_RENDERER_CLIENT_H_
 
 #include "content/public/renderer/content_renderer_client.h"
 
 #include <stddef.h>
@@ skipping 29 matching lines @@
 
   bool HandleNavigation(content::RenderFrame* render_frame,
                         bool is_content_initiated,
                         int opener_id,
                         blink::WebFrame* frame,
                         const blink::WebURLRequest& request,
                         blink::WebNavigationType type,
                         blink::WebNavigationPolicy default_policy,
                         bool is_redirect) override;
   bool ShouldUseMediaPlayerForURL(const GURL& url) override;
-  bool ShouldOverridePageVisibilityState(
-      const content::RenderFrame* render_frame,
-      blink::WebPageVisibilityState* override_state) override;
 
  private:
   std::unique_ptr<AwRenderThreadObserver> aw_render_thread_observer_;
   std::unique_ptr<visitedlink::VisitedLinkSlave> visited_link_slave_;
-  const bool disable_page_visibility_;
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_RENDERER_AW_CONTENT_RENDERER_CLIENT_H_