Remove ContextClient from NavigatorCredentialManager

third_party/WebKit/Source/modules/credentialmanager/NavigatorCredentials.cpp

Index: third_party/WebKit/Source/modules/credentialmanager/NavigatorCredentials.cpp
diff --git a/third_party/WebKit/Source/modules/credentialmanager/NavigatorCredentials.cpp b/third_party/WebKit/Source/modules/credentialmanager/NavigatorCredentials.cpp
index dbda6a66b3a025e7e8061b3ec9098d2855bebb55..53e68a28e3a79b74b03b304d2680a7727eef21df 100644
--- a/third_party/WebKit/Source/modules/credentialmanager/NavigatorCredentials.cpp
+++ b/third_party/WebKit/Source/modules/credentialmanager/NavigatorCredentials.cpp
@@ -13,7 +13,7 @@
 namespace blink {
 
 NavigatorCredentials::NavigatorCredentials(Navigator& navigator)
-    : ContextClient(navigator.frame()) {}
+    : Supplement<Navigator>(navigator) {}
 
 NavigatorCredentials& NavigatorCredentials::from(Navigator& navigator) {
   NavigatorCredentials* supplement = static_cast<NavigatorCredentials*>(
@@ -34,7 +34,7 @@ CredentialsContainer* NavigatorCredentials::credentials(Navigator& navigator) {
 }
 
 CredentialsContainer* NavigatorCredentials::credentials() {
-  if (!m_credentialsContainer && frame())

[haraken, 2017/01/06 01:04:50]

I don't think the frame() check makes sense. So dropped.

[sof, 2017/01/06 06:25:57]

yes, no implicit dependency on there being a frame when creating that object
either.

+  if (!m_credentialsContainer)
     m_credentialsContainer = CredentialsContainer::create();
   return m_credentialsContainer.get();
 }
@@ -42,7 +42,6 @@ CredentialsContainer* NavigatorCredentials::credentials() {
 DEFINE_TRACE(NavigatorCredentials) {
   visitor->trace(m_credentialsContainer);
   Supplement<Navigator>::trace(visitor);
-  ContextClient::trace(visitor);
 }
 
 }  // namespace blink