Adding the Copresence RpcHandler and HttpPost helper.

components/copresence/copresence_client.cc

Index: components/copresence/copresence_client.cc
diff --git a/components/copresence/copresence_client.cc b/components/copresence/copresence_client.cc
index 60e45e15d2156368eddf0e575f1812e6339e9dc6..abe3ec05905b8592846d8711333ef787437fc485 100644
--- a/components/copresence/copresence_client.cc
+++ b/components/copresence/copresence_client.cc
@@ -1,6 +1,6 @@
 // Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file.
 
 #include "components/copresence/public/copresence_client.h"
 
@@ -26,11 +26,10 @@ CopresenceClient::CopresenceClient(CopresenceClientDelegate* delegate)
     : delegate_(delegate), init_failed_(false), pending_init_operations_(0) {
   DVLOG(3) << "Initializing client.";
   pending_init_operations_++;
-  rpc_handler_.reset(
-      new RpcHandler(delegate,
-                     base::Bind(&CopresenceClient::InitStepComplete,
-                                AsWeakPtr(),
-                                "Copresence device registration")));
+  rpc_handler_.reset(new RpcHandler(delegate));
+  rpc_handler_->Initialize(base::Bind(&CopresenceClient::InitStepComplete,
+                                      AsWeakPtr(),
+                                      "Copresence device registration"));
 
   pending_init_operations_++;
   delegate_->GetWhispernetClient()->Initialize(
@@ -76,7 +75,7 @@ void CopresenceClient::CompleteInitialization() {
     return;
 
   if (!init_failed_)
-    rpc_handler_->ConnectToWhispernet(delegate_->GetWhispernetClient());
+    rpc_handler_->ConnectToWhispernet();
 
   for (std::vector<PendingRequest>::iterator request =
            pending_requests_queue_.begin();