Add the Mojo implementation of authenticator.mojom's MakeCredential.

third_party/WebKit/Source/modules/webauth/WebAuthentication.h

Index: third_party/WebKit/Source/modules/webauth/WebAuthentication.h
diff --git a/third_party/WebKit/Source/modules/webauth/WebAuthentication.h b/third_party/WebKit/Source/modules/webauth/WebAuthentication.h
index 2ffff0fea4c3722a589044fa2259c558f6c94c9f..21f92ea929d049180d4e0399b582434357a7b1f3 100644
--- a/third_party/WebKit/Source/modules/webauth/WebAuthentication.h
+++ b/third_party/WebKit/Source/modules/webauth/WebAuthentication.h
@@ -37,8 +37,6 @@ class WebAuthentication final
 
   virtual ~WebAuthentication();
 
-  void Dispose();
-
   // WebAuthentication.idl
   ScriptPromise makeCredential(ScriptState*,
                                const RelyingPartyAccount&,
@@ -49,24 +47,26 @@ class WebAuthentication final
                              const BufferSource&,
                              const AuthenticationAssertionOptions&);
 
-  // ContextLifecycleObserver overrides.
-  void ContextDestroyed(ExecutionContext*) override;
-
   webauth::mojom::blink::Authenticator* authenticator() const {
     return m_authenticator.get();
   }
 
-  void onMakeCredential(ScriptPromiseResolver*,
-                        Vector<webauth::mojom::blink::ScopedCredentialInfoPtr>);
-  bool markRequestComplete(ScriptPromiseResolver*);
-
-  void onAuthenticatorConnectionError();
+  // ContextLifecycleObserver overrides.
+  void ContextDestroyed(ExecutionContext*) override;
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   explicit WebAuthentication(LocalFrame&);
 
+  void onMakeCredential(ScriptPromiseResolver*,

[foolip, 2017/05/12 07:55:50]

Looks like this CL needs to be rebased to after the big rename, can you do that
and then ping again?

+                        webauth::mojom::blink::AuthenticatorStatus,
+                        webauth::mojom::blink::ScopedCredentialInfoPtr);
+  ScriptPromise rejectIfNotSupported(ScriptState*);
+  void onAuthenticatorConnectionError();
+  bool markRequestComplete(ScriptPromiseResolver*);
+  void cleanup();
+
   webauth::mojom::blink::AuthenticatorPtr m_authenticator;
   HeapHashSet<Member<ScriptPromiseResolver>> m_authenticatorRequests;
 };