NOT FOR COMMIT: Move background pausing to the WebView level

chrome/renderer/chrome_content_renderer_client.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 CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 #define CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 111 matching lines @@
                                const GURL& url) override;
   void GetNavigationErrorStrings(content::RenderFrame* render_frame,
                                  const blink::WebURLRequest& failed_request,
                                  const blink::WebURLError& error,
                                  std::string* error_html,
                                  base::string16* error_description) override;
   void DeferMediaLoad(content::RenderFrame* render_frame,
                       bool has_played_media_before,
                       const base::Closure& closure) override;
   bool RunIdleHandlerWhenWidgetsHidden() override;
-  bool AllowTimerSuspensionWhenProcessBackgrounded() override;
   bool AllowPopup() override;
   bool ShouldFork(blink::WebLocalFrame* frame,
                   const GURL& url,
                   const std::string& http_method,
                   bool is_initial_navigation,
                   bool is_server_redirect,
                   bool* send_referrer) override;
   bool WillSendRequest(blink::WebLocalFrame* frame,
                        ui::PageTransition transition_type,
                        const blink::WebURL& url,
@@ skipping 127 matching lines @@
   // Observes module load and unload events and notifies the ModuleDatabase in
   // the browser process.
   std::unique_ptr<ModuleWatcher> module_watcher_;
   mojom::ModuleEventSinkPtr module_event_sink_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(ChromeContentRendererClient);
 };
 
 #endif  // CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_