Add PDF compositor service

chrome/utility/chrome_content_utility_client.cc

Index: chrome/utility/chrome_content_utility_client.cc
diff --git a/chrome/utility/chrome_content_utility_client.cc b/chrome/utility/chrome_content_utility_client.cc
index 3a028e79c35ef2a9739f997cf052bb7046dd3996..2aea23f64eab67bfa2573c33648f8e8ef2bd22b8 100644
--- a/chrome/utility/chrome_content_utility_client.cc
+++ b/chrome/utility/chrome_content_utility_client.cc
@@ -56,6 +56,12 @@
 #include "chrome/utility/printing_handler.h"
 #endif
 
+#if BUILDFLAG(ENABLE_PRINTING)
+#include "chrome/common/chrome_content_client.h"
+#include "components/printing/service/public/cpp/pdf_compositor_service_factory.h"
+#include "components/printing/service/public/interfaces/pdf_compositor.mojom.h"  // nogncheck
+#endif
+
 #if defined(FULL_SAFE_BROWSING)
 #include "chrome/common/safe_archive_analyzer.mojom.h"
 #include "chrome/common/safe_browsing/zip_analyzer.h"
@@ -320,6 +326,17 @@ bool ChromeContentUtilityClient::OnMessageReceived(
   return false;
 }
 
+void ChromeContentUtilityClient::RegisterServices(
+    ChromeContentUtilityClient::StaticServiceMap* services) {
+#if BUILDFLAG(ENABLE_PRINTING)
+  content::ServiceInfo pdf_compositor_info;
+  pdf_compositor_info.factory =
+      base::Bind(&printing::CreatePdfCompositorService, GetUserAgent());
+  services->insert(

[dcheng, 2017/05/10 07:36:48]

Ditto: let's use emplace() now

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

Done.

+      std::make_pair(printing::mojom::kServiceName, pdf_compositor_info));
+#endif
+}
+
 // static
 void ChromeContentUtilityClient::PreSandboxStartup() {
 #if BUILDFLAG(ENABLE_EXTENSIONS)