Declarative resource hints go through mojo IPC to //content

third_party/WebKit/public/blink.gyp

Index: third_party/WebKit/public/blink.gyp
diff --git a/third_party/WebKit/public/blink.gyp b/third_party/WebKit/public/blink.gyp
index ed4841f5cd797836c82d21d31af805c32ecfc87d..f4aee5e9e56695b303f8e6ba581430a81226201a 100644
--- a/third_party/WebKit/public/blink.gyp
+++ b/third_party/WebKit/public/blink.gyp
@@ -47,6 +47,7 @@
             'platform/modules/serviceworker/service_worker_event_status.mojom',
             'platform/modules/vr/vr_service.mojom',
             'platform/modules/wake_lock/wake_lock_service.mojom',
+            'platform/resource_hints.mojom',
         ],
         # Duplicated in GN: //third_party/WebKit/public:android_mojo_bindings
         'blink_android_mojo_sources': [
@@ -144,6 +145,11 @@
                 'mojo_bindings_mojom',
                 '../../../mojo/mojo_public.gyp:mojo_cpp_bindings',
             ],
+            'variables': {
+                'mojom_typemaps': [

[Marijn Kruisselbrink, 2016/06/07 20:22:25]

You should add these typemaps to the mojo_bindings_mojom and
mojo_bindings_blink_mojom targets rather than to this static library. (the KURL
one for the blink version and the GURL one for the non-blink version).

[Charlie Harrison, 2016/06/08 12:28:20]

Done.

+                    '../Source/platform/mojo/KURL.typemap',
+                ],
+            },
         },
     ],
     'conditions': [