Replace --ppapi-keep-alive-throttle command line switch with IPC parameter.

components/nacl/browser/nacl_process_host.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 COMPONENTS_NACL_BROWSER_NACL_PROCESS_HOST_H_
 #define COMPONENTS_NACL_BROWSER_NACL_PROCESS_HOST_H_
 
 #include "build/build_config.h"
 
 #include "base/files/file_path.h"
@@ skipping 60 matching lines @@
                   bool enable_crash_throttling,
                   bool off_the_record,
                   const base::FilePath& profile_directory);
   virtual ~NaClProcessHost();
 
   virtual void OnProcessCrashed(int exit_status) OVERRIDE;
 
   // Do any minimal work that must be done at browser startup.
   static void EarlyStartup();
 
+  // Specifies throttling time in milliseconds for PpapiHostMsg_Keepalive IPCs.
+  static void SetPpapiKeepAliveThrottleForTesting(unsigned milliseconds);
+
   // Initialize the new NaCl process. Result is returned by sending ipc
   // message reply_msg.
   void Launch(NaClHostMessageFilter* nacl_host_message_filter,
               IPC::Message* reply_msg,
               const base::FilePath& manifest_path);
 
   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
 
 #if defined(OS_WIN)
   void OnProcessLaunchedByBroker(base::ProcessHandle handle);
@@ skipping 122 matching lines @@
 
   const base::FilePath profile_directory_;
 
   // Channel proxy to terminate the NaCl-Browser PPAPI channel.
   scoped_ptr<IPC::ChannelProxy> ipc_proxy_channel_;
   // Browser host for plugin process.
   scoped_ptr<content::BrowserPpapiHost> ppapi_host_;
 
   int render_view_id_;
 
+  // Throttling time in milliseconds for PpapiHostMsg_Keepalive IPCs.
+  static unsigned keepalive_throttle_interval_milliseconds_;
+
   DISALLOW_COPY_AND_ASSIGN(NaClProcessHost);
 };
 
 }  // namespace nacl
 
 #endif  // COMPONENTS_NACL_BROWSER_NACL_PROCESS_HOST_H_