[Experimental] Supporting OOPIF printing

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 a27aa51ab8092467d072df96f3c106c1daac9ea6..b001f9c9c0f52a5ed5c3fb8bfdaffb029c5902a7 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -195,6 +195,7 @@
 #include "ppapi/host/ppapi_host.h"
 #include "printing/features/features.h"
 #include "services/image_decoder/public/interfaces/constants.mojom.h"
+#include "services/pdf_compositor/public/interfaces/constants.mojom.h"
 #include "services/preferences/public/interfaces/preferences.mojom.h"
 #include "services/service_manager/public/cpp/interface_provider.h"
 #include "services/service_manager/public/cpp/interface_registry.h"
@@ -3128,6 +3129,9 @@ void ChromeContentBrowserClient::RegisterOutOfProcessServices(
 #endif
   services->insert(std::make_pair(image_decoder::mojom::kServiceName,
                                   base::ASCIIToUTF16("Image Decoder Service")));
+  services->insert(
+      std::make_pair(pdf_compositor::mojom::kServiceName,
+                     base::ASCIIToUTF16("PDF Compositor Service")));
 }
 
 std::unique_ptr<base::Value>