Shape detection service: Add QR detection in Mac

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 4546d52b7e3824a30aa9fc838f8434555224e975..ca44403cd9042a76b5be8c74dfdf4de2a2bcfd1e 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -219,7 +219,7 @@
 #if defined(OS_MACOSX)
 #include "content/browser/bootstrap_sandbox_manager_mac.h"
 #include "content/browser/mach_broker_mac.h"
-#include "content/browser/shapedetection/face_detection_service_dispatcher.h"
+#include "content/browser/shapedetection/shape_detection_service_dispatcher.h"
 #endif
 
 #if defined(OS_POSIX)
@@ -1200,7 +1200,10 @@ void RenderProcessHostImpl::RegisterMojoInterfaces() {
 #if defined(OS_MACOSX)
   AddUIThreadInterface(
       registry.get(),
-      base::Bind(&FaceDetectionServiceDispatcher::CreateMojoService));
+      base::Bind(&ShapeDetectionServiceDispatcher::CreateFaceMojoService));
+  AddUIThreadInterface(

[Ken Rockot(use gerrit already), 2017/02/01 21:01:07]

Note that in both of these cases, trying to use the API on non-Android non-OS X
will (intentionally) crash the renderer because there won't be a registered
request handler for these interfaces. Consider registering no-op handlers for
other platforms.

[mcasas, 2017/02/02 19:40:33]

True.  What we want is, in non-Android, to route the request to 
the service, which will drop it in non-MacOsX platforms, so that
the client will be notified via its connection's |error_handler|.
Modified accordingly.

+      registry.get(),
+      base::Bind(&ShapeDetectionServiceDispatcher::CreateBarcodeMojoService));
 #endif
 
 #if defined(OS_ANDROID)