SetOnKeepaliveCallback  881 components/nacl/browser/nacl_process_host.cc     ppapi_host_->SetOnKeepaliveCallback(
SetOnKeepaliveCallback   57 content/browser/renderer_host/pepper/browser_ppapi_host_impl.h   virtual void SetOnKeepaliveCallback(
SetOnKeepaliveCallback   98 content/public/browser/browser_ppapi_host.h   virtual void SetOnKeepaliveCallback(const OnKeepaliveCallback& callback) = 0;