Plumb initiator out of Blink.

third_party/WebKit/Source/web/tests/WebFrameTest.cpp

Index: third_party/WebKit/Source/web/tests/WebFrameTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/WebFrameTest.cpp b/third_party/WebKit/Source/web/tests/WebFrameTest.cpp
index b32fcc1acb9da6242273a65169a6841ba8c3610c..a324aba06f9857d2dab9d76f03a272d88e3fd15a 100644
--- a/third_party/WebKit/Source/web/tests/WebFrameTest.cpp
+++ b/third_party/WebKit/Source/web/tests/WebFrameTest.cpp
@@ -7419,7 +7419,8 @@ class TestHistoryWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
     m_replacesCurrentHistoryItem = false;
   }
 
-  void didStartProvisionalLoad(WebDataSource* dataSource,
+  void didStartProvisionalLoad(WebLocalFrame* initiatorFrame,
+                               WebDataSource* dataSource,
                                WebURLRequest& request) {
     m_replacesCurrentHistoryItem = dataSource->replacesCurrentHistoryItem();
   }
@@ -9154,7 +9155,8 @@ TEST_F(WebFrameSwapTest, HistoryCommitTypeAfterExistingRemoteToLocalSwap) {
 class RemoteNavigationClient
     : public FrameTestHelpers::TestWebRemoteFrameClient {
  public:
-  void navigate(const WebURLRequest& request,
+  void navigate(WebLocalFrame* initiatorFrame,
+                const WebURLRequest& request,
                 bool shouldReplaceCurrentEntry) override {
     m_lastRequest = request;
   }
@@ -10129,7 +10131,9 @@ class CallbackOrderingWebFrameClient
     EXPECT_EQ(0, m_callbackCount++);
     FrameTestHelpers::TestWebFrameClient::didStartLoading(toDifferentDocument);
   }
-  void didStartProvisionalLoad(WebDataSource*, WebURLRequest&) override {
+  void didStartProvisionalLoad(WebLocalFrame* initiatorFrame,
+                               WebDataSource*,
+                               WebURLRequest&) override {
     EXPECT_EQ(1, m_callbackCount++);
   }
   void didCommitProvisionalLoad(WebLocalFrame*,