HostResolver is exposed to plugin.

content/renderer/pepper/pepper_plugin_delegate_impl.h

Index: content/renderer/pepper/pepper_plugin_delegate_impl.h
diff --git a/content/renderer/pepper/pepper_plugin_delegate_impl.h b/content/renderer/pepper/pepper_plugin_delegate_impl.h
index f5519b4bfe383f7b8013a4d73c41e6562e338d07..932dbe463dbd0f3dc9552155e18d47a7ba387cb9 100644
--- a/content/renderer/pepper/pepper_plugin_delegate_impl.h
+++ b/content/renderer/pepper/pepper_plugin_delegate_impl.h
@@ -20,6 +20,7 @@
 #include "content/public/renderer/render_view_observer.h"
 #include "content/renderer/mouse_lock_dispatcher.h"
 #include "content/renderer/pepper/pepper_parent_context_provider.h"
+#include "ppapi/shared_impl/private/ppb_host_resolver_shared.h"
 #include "ppapi/shared_impl/private/tcp_socket_private_impl.h"
 #include "ppapi/shared_impl/private/udp_socket_private_impl.h"
 #include "ui/base/ime/text_input_type.h"
@@ -301,6 +302,15 @@ class PepperPluginDelegateImpl
   virtual void TCPServerSocketStopListening(uint32 real_socket_id,
                                             uint32 temp_socket_id) OVERRIDE;
 
+  virtual void RegisterHostResolver(
+      ppapi::PPB_HostResolver_Shared* host_resolver,
+      uint32 host_resolver_id) OVERRIDE;
+  virtual void HostResolverResolve(
+      uint32 host_resolver_id,
+      const ::ppapi::HostPortPair& host_port,
+      const PP_HostResolver_Private_Hint* hint) OVERRIDE;
+  virtual void UnregisterHostResolver(uint32 host_resolver_id) OVERRIDE;
+
   virtual bool AddNetworkListObserver(
       webkit_glue::NetworkListObserver* observer) OVERRIDE;
   virtual void RemoveNetworkListObserver(
@@ -393,6 +403,11 @@ class PepperPluginDelegateImpl
                                   uint32 accepted_socket_id,
                                   const PP_NetAddress_Private& local_addr,
                                   const PP_NetAddress_Private& remote_addr);
+  void OnHostResolverResolveACK(uint32 plugin_dispatcher_id,
+                                uint32 host_resolver_id,
+                                bool succeeded,
+                                const std::string& canonical_name,
+                                const ppapi::NetAddressList& net_address_list);
 
   CONTENT_EXPORT int GetRoutingID() const;
 
@@ -450,6 +465,8 @@ class PepperPluginDelegateImpl
   IDMap<webkit::ppapi::PPB_TCPServerSocket_Private_Impl>
       uninitialized_tcp_server_sockets_;
 
+  IDMap<ppapi::PPB_HostResolver_Shared> host_resolvers_;
+
   IDMap<scoped_refptr<webkit::ppapi::PPB_Flash_Menu_Impl>,
         IDMapOwnPointer> pending_context_menus_;