Remove keep-alive impulse IPCs from NaCl modules.

components/nacl/browser/nacl_browser_delegate.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 COMPONENTS_NACL_BROWSER_NACL_BROWSER_DELEGATE_H_
 #define COMPONENTS_NACL_BROWSER_NACL_BROWSER_DELEGATE_H_
 
 #include <string>
 
 #include "base/callback_forward.h"
@@ skipping 55 matching lines @@
   virtual bool MapUrlToLocalFilePath(const GURL& url,
                                      bool use_blocking_api,
                                      const base::FilePath& profile_directory,
                                      base::FilePath* file_path) = 0;
   // Set match patterns which will be checked before enabling debug stub.
   virtual void SetDebugPatterns(const std::string& debug_patterns) = 0;
 
   // Returns whether NaCl application with this manifest URL should be debugged.
   virtual bool URLMatchesDebugPatterns(const GURL& manifest_url) = 0;
 
-  // Returns a callback that handles NaCl idle state transitions.
-  virtual content::BrowserPpapiHost::OnKeepaliveCallback
-      GetOnKeepaliveCallback() = 0;
-
   // Returns whether Non-SFI mode is allowed for a given manifest URL.
   virtual bool IsNonSfiModeAllowed(const base::FilePath& profile_directory,
                                    const GURL& manifest_url) = 0;
 };
 
 #endif  // COMPONENTS_NACL_BROWSER_NACL_BROWSER_DELEGATE_H_