Add PDF compositor service

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 c275577844267cb5851e2295fccab52c44826c3d..10be37a2857e8833d851c1947e42a37b97a7c754 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -378,6 +378,10 @@
 #include "chrome/browser/media/cast_remoting_connector.h"
 #endif
 
+#if BUILDFLAG(ENABLE_PRINTING)
+#include "components/printing/service/public/interfaces/pdf_compositor.mojom.h"
+#endif
+
 #if BUILDFLAG(ENABLE_WAYLAND_SERVER)
 #include "chrome/browser/chrome_browser_main_extra_parts_exo.h"
 #endif
@@ -3291,6 +3295,12 @@ void ChromeContentBrowserClient::RegisterOutOfProcessServices(
   services->insert(std::make_pair("media",
                                   base::ASCIIToUTF16("Media Service")));
 #endif
+
+#if BUILDFLAG(ENABLE_PRINTING)
+  services->insert(

[dcheng, 2017/05/10 07:36:47]

Nit: let's use emplace(printing::mojom::kServiceName, base::ASCIIToUTF16(...))

[Wei Li, 2017/05/11 16:53:01]

Done.

+      std::make_pair(printing::mojom::kServiceName,
+                     base::ASCIIToUTF16("PDF Compositor Service")));
+#endif
 }
 
 std::unique_ptr<base::Value>
@@ -3326,6 +3336,9 @@ ChromeContentBrowserClient::GetExtraServiceManifests() {
         {nacl::kNaClBrokerServiceName, IDR_NACL_BROKER_MANIFEST},
 #endif  // defined(OS_WIN)
 #endif  // !defined(DISABLE_NACL)
+#if BUILDFLAG(ENABLE_PRINTING)
+        {printing::mojom::kServiceName, IDR_PDF_COMPOSITOR_MANIFEST},
+#endif
   });
 }