Remove a bunch of provisionalDataSource() usage.

components/test_runner/web_test_proxy.h

Index: components/test_runner/web_test_proxy.h
diff --git a/components/test_runner/web_test_proxy.h b/components/test_runner/web_test_proxy.h
index f60a9adef6b794f2fe2a3c42510adf2300764fbc..b0f685f727b8bef54e7aa5e170c95f3ec6feea3a 100644
--- a/components/test_runner/web_test_proxy.h
+++ b/components/test_runner/web_test_proxy.h
@@ -186,7 +186,7 @@ class TEST_RUNNER_EXPORT WebTestProxyBase {
                          const blink::WebString& suggested_name);
   void DidStartProvisionalLoad(blink::WebLocalFrame*);
   void DidReceiveServerRedirectForProvisionalLoad(blink::WebLocalFrame* frame);
-  bool DidFailProvisionalLoad(blink::WebLocalFrame* frame,
+  void DidFailProvisionalLoad(blink::WebLocalFrame* frame,
                               const blink::WebURLError& error,
                               blink::WebHistoryCommitType commit_type);
   void DidCommitProvisionalLoad(blink::WebLocalFrame* frame,
@@ -208,8 +208,7 @@ class TEST_RUNNER_EXPORT WebTestProxyBase {
                     bool did_block_entire_page);
   void DidDispatchPingLoader(blink::WebLocalFrame* frame,
                              const blink::WebURL& url);
-  void WillSendRequest(blink::WebLocalFrame* frame,
-                       unsigned identifier,
+  void WillSendRequest(unsigned identifier,
                        blink::WebURLRequest& request,
                        const blink::WebURLResponse& redirect_response);
   void DidReceiveResponse(blink::WebLocalFrame* frame,