FBTF: More ctor/dtor cleanup.

(3.5 megs off debug linux .a files)

BUG=none
TEST=compiles

Review URL: http://codereview.chromium.org/3806005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@62654 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/io_thread.cc b/chrome/browser/io_thread.cc
index 0c9b114d..8a18541b 100644
--- a/chrome/browser/io_thread.cc
+++ b/chrome/browser/io_thread.cc
@@ -14,6 +14,7 @@
 #include "chrome/browser/browser_thread.h"
 #include "chrome/browser/gpu_process_host.h"
 #include "chrome/browser/net/chrome_net_log.h"
+#include "chrome/browser/net/connect_interceptor.h"
 #include "chrome/browser/net/predictor_api.h"
 #include "chrome/browser/net/passive_log_collector.h"
 #include "chrome/common/chrome_switches.h"
@@ -116,6 +117,10 @@
 // Quit task.
 DISABLE_RUNNABLE_METHOD_REFCOUNT(IOThread);
 
+IOThread::Globals::Globals() {}
+
+IOThread::Globals::~Globals() {}
+
 IOThread::IOThread()
     : BrowserProcessSubThread(BrowserThread::IO),
       globals_(NULL),