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..4739fc7547e518be1898dffe304157fc76453ebe 100644
--- a/components/copresence/copresence_client.cc
+++ b/components/copresence/copresence_client.cc
@@ -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(),

[willchan no longer on Chromium, 2014/08/07 20:42:43]

Why is AsWeakPtr() used here? Doesn't CopresenceClient own rpc_handler_? I
assume so, since it uses a scoped_ptr<RpcHandler>. If I'm correct, then why is a
weak pointer necessary? Whenever the CopresenceClient gets deleted, it will
delete RpcHandler.

Using WeakPtrs like this just makes users ask more questions about the lifetime
of the various objects. What owns what?

[Charlie, 2014/08/07 22:40:58]

Removed.

+                                      "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();