[webnfc] Implement push method for Android nfc mojo service.

content/browser/mojo/service_registrar_android.cc

Index: content/browser/mojo/service_registrar_android.cc
diff --git a/content/browser/mojo/service_registrar_android.cc b/content/browser/mojo/service_registrar_android.cc
index cd0cfacf81883ef2dd4c35a3913e191778ecc203..0b0be9f76c970731ddcac26ed0c0c59fdceb6b74 100644
--- a/content/browser/mojo/service_registrar_android.cc
+++ b/content/browser/mojo/service_registrar_android.cc
@@ -7,6 +7,7 @@
 #include "base/android/context_utils.h"
 #include "base/android/jni_android.h"
 #include "content/public/browser/android/service_registry_android.h"
+#include "content/public/browser/web_contents.h"
 #include "jni/ServiceRegistrar_jni.h"
 
 namespace content {
@@ -26,9 +27,16 @@ void ServiceRegistrarAndroid::RegisterProcessHostServices(
 
 // static
 void ServiceRegistrarAndroid::RegisterFrameHostServices(
-    ServiceRegistryAndroid* registry) {
+    ServiceRegistryAndroid* registry, RenderFrameHost* frame) {
+  ScopedJavaLocalRef<jobject> java_web_contents;
+  WebContents* contents = WebContents::FromRenderFrameHost(frame);
+  if (contents)
+    java_web_contents = contents->GetJavaWebContents();
+
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_ServiceRegistrar_registerFrameHostServices(
-      env, registry->GetObj().obj(), base::android::GetApplicationContext());
+      env, registry->GetObj().obj(),
+      base::android::GetApplicationContext(),
+      java_web_contents.obj());
 }
 }  // namespace content