Revert of [Web Payments] Mojom namespace blink -> payments

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index d576d6f18cd5fddf52e7dbe072dbd5984a4b63c5..edadc181b79f064b4e61b5ddca3e0c6a640b945a 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -2963,7 +2963,7 @@
   if (web_contents) {
     registry->AddInterface(
         web_contents->GetJavaInterfaces()
-            ->CreateInterfaceFactory<payments::mojom::PaymentRequest>());
+            ->CreateInterfaceFactory<blink::mojom::PaymentRequest>());
     registry->AddInterface(
         base::Bind(&ForwardShareServiceRequest,
                    web_contents->GetJavaInterfaces()->GetWeakPtr()));