Add a hang monitor for Pepper plugins

ppapi/example/example.cc

 // 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.
 
 #include <math.h>
 #include <stdio.h>  // FIXME(brettw) erase me.
 #ifndef _WIN32
 #include <sys/time.h>
+#include <unistd.h>
 #else
 #include <windows.h>
 #endif
 #include <time.h>
 
 #include <algorithm>
 
 #include "ppapi/c/dev/ppb_console_dev.h"
 #include "ppapi/c/dev/ppb_cursor_control_dev.h"
 #include "ppapi/c/dev/ppp_printing_dev.h"
@@ skipping 164 matching lines @@
   }
 
   virtual ~MyInstance() {
     if (fetcher_) {
       delete fetcher_;
       fetcher_ = NULL;
     }
   }
 
   virtual bool Init(uint32_t argc, const char* argn[], const char* argv[]) {
+    sleep(15);

[yzshen1, 2012/04/11 18:30:46]

This is not going to be checked in, right?
Besides, I think this doesn't work on Windows. You probably want to use
::Sleep(15*1000)

     return true;
   }
 
   void Log(PP_LogLevel_Dev level, const pp::Var& value) {
     const PPB_Console_Dev* console = reinterpret_cast<const PPB_Console_Dev*>(
         pp::Module::Get()->GetBrowserInterface(PPB_CONSOLE_DEV_INTERFACE));
     if (!console)
       return;
     console->Log(pp_instance(), level, value.pp_var());
   }
@@ skipping 292 matching lines @@
 };
 
 namespace pp {
 
 // Factory function for your specialization of the Module object.
 Module* CreateModule() {
   return new MyModule();
 }
 
 }  // namespace pp