HostResolver is exposed to plugin.

webkit/plugins/ppapi/plugin_module.cc

Index: webkit/plugins/ppapi/plugin_module.cc
diff --git a/webkit/plugins/ppapi/plugin_module.cc b/webkit/plugins/ppapi/plugin_module.cc
index 746e515d3746afd9d9dd34fe2ddfaed9ac1573bf..904c331b4d2567c441c348b10c1d7a0b5e12fa93 100644
--- a/webkit/plugins/ppapi/plugin_module.cc
+++ b/webkit/plugins/ppapi/plugin_module.cc
@@ -74,6 +74,7 @@
 #include "ppapi/c/private/ppb_flash_message_loop.h"
 #include "ppapi/c/private/ppb_flash_tcp_socket.h"
 #include "ppapi/c/private/ppb_gpu_blacklist_private.h"
+#include "ppapi/c/private/ppb_host_resolver_private.h"
 #include "ppapi/c/private/ppb_instance_private.h"
 #include "ppapi/c/private/ppb_pdf.h"
 #include "ppapi/c/private/ppb_proxy_private.h"
@@ -337,6 +338,8 @@ const void* GetInterface(const char* name) {
     return PPB_GpuBlacklist_Private_Impl::GetInterface();
   if (strcmp(name, PPB_GRAPHICS_3D_TRUSTED_INTERFACE_1_0) == 0)
     return ::ppapi::thunk::GetPPB_Graphics3DTrusted_1_0_Thunk();
+  if (strcmp(name, PPB_HOSTRESOLVER_PRIVATE_INTERFACE_0_1) == 0)
+    return ::ppapi::thunk::GetPPB_HostResolver_Private_0_1_Thunk();
   if (strcmp(name, PPB_IMAGEDATA_TRUSTED_INTERFACE_0_4) == 0)
     return ::ppapi::thunk::GetPPB_ImageDataTrusted_0_4_Thunk();
   if (strcmp(name, PPB_INPUT_EVENT_INTERFACE_1_0) == 0)