Switch to using URLRequestContextBuilder to create some URLRequestContexts.

remoting/host/setup/oauth_client.h

Index: remoting/host/setup/oauth_client.h
diff --git a/remoting/host/setup/oauth_client.h b/remoting/host/setup/oauth_client.h
index 2fdcbfe4268e304a60b6dcf9f9ae6fb0a768f6dc..54bd48ceb89b3f9a5e394e53a60b107a8acb59c7 100644
--- a/remoting/host/setup/oauth_client.h
+++ b/remoting/host/setup/oauth_client.h
@@ -9,8 +9,13 @@
 #include <string>
 
 #include "base/callback.h"
+#include "base/memory/ref_counted.h"
 #include "google_apis/gaia/gaia_oauth_client.h"
-#include "remoting/base/url_request_context.h"
+#include "net/url_request/url_request_context_getter.h"
+
+namespace net {
+class URLRequestContext;
+}
 
 namespace remoting {