Move remaining content test code into the content namespace.

content/test/net/url_request_failed_job.h

Index: content/test/net/url_request_failed_job.h
===================================================================
--- content/test/net/url_request_failed_job.h	(revision 164732)
+++ content/test/net/url_request_failed_job.h	(working copy)
@@ -12,6 +12,8 @@
 #include "googleurl/src/gurl.h"
 #include "net/url_request/url_request_job.h"
 
+namespace content {
+
 // This class simulates a URLRequestJob failing with a given error code while
 // trying to connect.
 class URLRequestFailedJob : public net::URLRequestJob {
@@ -48,4 +50,6 @@
   DISALLOW_COPY_AND_ASSIGN(URLRequestFailedJob);
 };
 
+}  // namespace content
+
 #endif  // CONTENT_TEST_NET_URL_REQUEST_FAILED_JOB_H_