Delete the ClientSocketPoolHistograms class.

net/socket/client_socket_handle.cc

Index: net/socket/client_socket_handle.cc
diff --git a/net/socket/client_socket_handle.cc b/net/socket/client_socket_handle.cc
index 53bcd77499a0afa27242f29811ccbd128a5f2f1f..734e58aeffff7369f6547ec84a98d8307d10d26e 100644
--- a/net/socket/client_socket_handle.cc
+++ b/net/socket/client_socket_handle.cc
@@ -11,7 +11,6 @@
 #include "base/logging.h"
 #include "net/base/net_errors.h"
 #include "net/socket/client_socket_pool.h"
-#include "net/socket/client_socket_pool_histograms.h"
 
 namespace net {
 
@@ -149,8 +148,6 @@ scoped_ptr<StreamSocket> ClientSocketHandle::PassSocket() {
 
 void ClientSocketHandle::HandleInitCompletion(int result) {
   CHECK_NE(ERR_IO_PENDING, result);
-  ClientSocketPoolHistograms* histograms = pool_->histograms();
-  histograms->AddErrorCode(result);
   if (result != OK) {
     if (!socket_.get())
       ResetInternal(false);  // Nothing to cancel since the request failed.
@@ -162,22 +159,6 @@ void ClientSocketHandle::HandleInitCompletion(int result) {
   CHECK_NE(-1, pool_id_) << "Pool should have set |pool_id_| to a valid value.";
   setup_time_ = base::TimeTicks::Now() - init_time_;
 
-  histograms->AddSocketType(reuse_type());
-  switch (reuse_type()) {
-    case ClientSocketHandle::UNUSED:
-      histograms->AddRequestTime(setup_time());
-      break;
-    case ClientSocketHandle::UNUSED_IDLE:
-      histograms->AddUnusedIdleTime(idle_time());
-      break;
-    case ClientSocketHandle::REUSED_IDLE:
-      histograms->AddReusedIdleTime(idle_time());
-      break;
-    default:
-      NOTREACHED();
-      break;
-  }
-
   // Broadcast that the socket has been acquired.
   // TODO(eroman): This logging is not complete, in particular set_socket() and
   // release() socket. It ends up working though, since those methods are being