Remove a bunch of provisionalDataSource() usage.

components/test_runner/web_test_proxy.cc

Index: components/test_runner/web_test_proxy.cc
diff --git a/components/test_runner/web_test_proxy.cc b/components/test_runner/web_test_proxy.cc
index 1dc3bf2d2fa24d8cac96d9f99ead835293bee3a7..9bc9c96ebf8047e43f5550fcb55ebcfcd849fd51 100644
--- a/components/test_runner/web_test_proxy.cc
+++ b/components/test_runner/web_test_proxy.cc
@@ -1084,7 +1084,7 @@ void WebTestProxyBase::DidReceiveServerRedirectForProvisionalLoad(
   }
 }
 
-bool WebTestProxyBase::DidFailProvisionalLoad(
+void WebTestProxyBase::DidFailProvisionalLoad(
     blink::WebLocalFrame* frame,
     const blink::WebURLError& error,
     blink::WebHistoryCommitType commit_type) {
@@ -1093,7 +1093,6 @@ bool WebTestProxyBase::DidFailProvisionalLoad(
     delegate_->PrintMessage(" - didFailProvisionalLoadWithError\n");
   }
   CheckDone(frame, MainResourceLoadFailed);
-  return !frame->provisionalDataSource();
 }
 
 void WebTestProxyBase::DidCommitProvisionalLoad(
@@ -1176,7 +1175,6 @@ void WebTestProxyBase::DidDispatchPingLoader(blink::WebLocalFrame* frame,
 }
 
 void WebTestProxyBase::WillSendRequest(
-    blink::WebLocalFrame* frame,
     unsigned identifier,
     blink::WebURLRequest& request,
     const blink::WebURLResponse& redirect_response) {