Move remaining content test code into the content namespace.

content/test/net/url_request_abort_on_end_job.h

Index: content/test/net/url_request_abort_on_end_job.h
===================================================================
--- content/test/net/url_request_abort_on_end_job.h	(revision 164732)
+++ content/test/net/url_request_abort_on_end_job.h	(working copy)
@@ -13,6 +13,8 @@
 #include "base/memory/weak_ptr.h"
 #include "net/url_request/url_request_job.h"
 
+namespace content {
+
 // This url request simulates a network error which occurs immediately after
 // receiving the very first data.
 
@@ -49,4 +51,6 @@
   DISALLOW_COPY_AND_ASSIGN(URLRequestAbortOnEndJob);
 };
 
+}  // namespace content
+
 #endif  // CONTENT_TEST_NET_URL_REQUEST_ABORT_ON_END_JOB_H_