Change how PepperMessageFilter is constructed, to simplify its use.

content/browser/renderer_host/pepper/pepper_tcp_socket.h

Index: content/browser/renderer_host/pepper/pepper_tcp_socket.h
===================================================================
--- content/browser/renderer_host/pepper/pepper_tcp_socket.h	(revision 155271)
+++ content/browser/renderer_host/pepper/pepper_tcp_socket.h	(working copy)
@@ -23,6 +23,7 @@
 
 namespace net {
 class DrainableIOBuffer;
+class HostResolver;
 class IOBuffer;
 class SingleRequestHostResolver;
 class StreamSocket;
@@ -49,7 +50,8 @@
 
   int routing_id() { return routing_id_; }
 
-  void Connect(const std::string& host, uint16_t port);
+  void Connect(const std::string& host, uint16_t port,
+               net::HostResolver* host_resolver);
   void ConnectWithNetAddress(const PP_NetAddress_Private& net_addr);
   void SSLHandshake(
       const std::string& server_name,