| Index: content/shell/common/shell_messages.h
 | 
| diff --git a/content/shell/common/shell_messages.h b/content/shell/common/shell_messages.h
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| index 0be743f4376a0731bd451fd7d717961dd74b9467..dd602c1d0d95b287c3df622db3ed6c76356271de 100644
 | 
| --- a/content/shell/common/shell_messages.h
 | 
| +++ b/content/shell/common/shell_messages.h
 | 
| @@ -113,6 +113,14 @@ IPC_MESSAGE_ROUTED1(ShellViewHostMsg_SetDeviceScaleFactor,
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|  IPC_MESSAGE_ROUTED0(ShellViewHostMsg_CaptureSessionHistory)
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|  IPC_MESSAGE_ROUTED0(ShellViewHostMsg_CloseRemainingWindows)
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|  
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| +IPC_MESSAGE_CONTROL3(ShellViewHostMsg_EchoPing,
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| +                     int /* routing_id */,
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| +                     int /* id */,
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| +                     std::string /* body */)
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| +IPC_MESSAGE_ROUTED2(ShellViewMsg_EchoPong,
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| +                    int /* id */,
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| +                    std::string /* body */)
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| +
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|  IPC_STRUCT_TRAITS_BEGIN(content::LeakDetectionResult)
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|  IPC_STRUCT_TRAITS_MEMBER(leaked)
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|  IPC_STRUCT_TRAITS_MEMBER(detail)
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| 
 |