| Index: chrome/common/prerender_messages.h
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| diff --git a/chrome/common/prerender_messages.h b/chrome/common/prerender_messages.h
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| index 848476e64c44a5d9081ff096f0a6c3e8b438701e..f30ee4bb885de1f39ac210fa0fdfb3746b73d7c3 100644
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| --- a/chrome/common/prerender_messages.h
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| +++ b/chrome/common/prerender_messages.h
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| @@ -45,10 +45,15 @@ IPC_MESSAGE_CONTROL1(PrerenderHostMsg_AbandonLinkRelPrerender,
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|  IPC_MESSAGE_ROUTED1(PrerenderMsg_SetIsPrerendering,
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|                      bool /* whether the RenderView is prerendering */)
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|  
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| -// Specifies that a URL is currently being prerendered.
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| -IPC_MESSAGE_CONTROL1(PrerenderMsg_AddPrerenderURL,
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| -                     GURL /* url */)
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| +// Signals a launcher that a prerender is running.
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| +IPC_MESSAGE_CONTROL1(PrerenderMsg_StartedPrerender,
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| +                     int /* prerender_id */)
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|  
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| -// Specifies that a URL is no longer being prerendered.
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| -IPC_MESSAGE_CONTROL1(PrerenderMsg_RemovePrerenderURL,
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| +// Adds an alias URL to a running prerender.
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| +IPC_MESSAGE_CONTROL2(PrerenderMsg_AddAliasToPrerender,
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| +                     int /* prerender_id */,
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|                       GURL /* url */)
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| +
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| +// Signals a launcher that a prerender is no longer running.
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| +IPC_MESSAGE_CONTROL1(PrerenderMsg_StoppedPrerender,
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| +                     int /* prerender_id */)
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| 
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