Plumb initiator out of Blink.

third_party/WebKit/Source/web/LocalFrameClientImpl.cpp

 /*
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 409 matching lines @@
 void LocalFrameClientImpl::dispatchWillCommitProvisionalLoad() {
   if (m_webFrame->client())
     m_webFrame->client()->willCommitProvisionalLoad();
 }
 
 void LocalFrameClientImpl::dispatchDidStartProvisionalLoad(
     DocumentLoader* loader,
     ResourceRequest& request) {
   if (m_webFrame->client()) {
     WrappedResourceRequest wrappedRequest(request);
+    DCHECK(!loader->originDocument() || loader->originDocument()->frame());
+    WebLocalFrame* initiatorFrame =
+        loader->originDocument()
+            ? WebLocalFrameImpl::fromFrame(loader->originDocument()->frame())
+            : nullptr;
     m_webFrame->client()->didStartProvisionalLoad(
-        WebDataSourceImpl::fromDocumentLoader(loader),
+        initiatorFrame, WebDataSourceImpl::fromDocumentLoader(loader),
         wrappedRequest);
   }
   if (WebDevToolsAgentImpl* devTools = devToolsAgent())
     devTools->didStartProvisionalLoad(m_webFrame->frame());
 }
 
 void LocalFrameClientImpl::dispatchDidReceiveTitle(const String& title) {
   if (m_webFrame->client()) {
     m_webFrame->client()->didReceiveTitle(m_webFrame, title,
                                           WebTextDirectionLeftToRight);
@@ skipping 79 matching lines @@
   bool meta = inputEvent->modifiers() & WebMouseEvent::MetaKey;
 
   NavigationPolicy userPolicy;
   if (!navigationPolicyFromMouseEvent(buttonNumber, ctrl, shift, alt, meta,
                                       &userPolicy))
     return false;
   return userPolicy == NavigationPolicyNewBackgroundTab;
 }
 
 NavigationPolicy LocalFrameClientImpl::decidePolicyForNavigation(
+    Document* originDocument,
     const ResourceRequest& request,
     DocumentLoader* loader,
     NavigationType type,
     NavigationPolicy policy,
     bool replacesCurrentHistoryItem,
     bool isClientRedirect,
     HTMLFormElement* form,
     ContentSecurityPolicyDisposition
         shouldCheckMainWorldContentSecurityPolicy) {
   if (!m_webFrame->client())
@@ skipping 179 matching lines @@
   if (WebFrameClient* client = m_webFrame->client()) {
     client->didMatchCSS(m_webFrame, WebVector<WebString>(addedSelectors),
                         WebVector<WebString>(removedSelectors));
   }
 }
 
 DocumentLoader* LocalFrameClientImpl::createDocumentLoader(
     LocalFrame* frame,
     const ResourceRequest& request,
     const SubstituteData& data,
-    ClientRedirectPolicy clientRedirectPolicy) {
+    ClientRedirectPolicy clientRedirectPolicy,
+    Document* originDocument) {
   DCHECK(frame);
 
-  WebDataSourceImpl* ds =
-      WebDataSourceImpl::create(frame, request, data, clientRedirectPolicy);
+  WebDataSourceImpl* ds = WebDataSourceImpl::create(
+      frame, request, data, clientRedirectPolicy, originDocument);
   if (m_webFrame->client())
     m_webFrame->client()->didCreateDataSource(m_webFrame, ds);
   return ds;
 }
 
 String LocalFrameClientImpl::userAgent() {
   WebString override =
       m_webFrame->client() ? m_webFrame->client()->userAgentOverride() : "";
   if (!override.isEmpty())
     return override;
@@ skipping 288 matching lines @@
   if (m_webFrame->client())
     m_webFrame->client()->setHasReceivedUserGesture();
 }
 
 void LocalFrameClientImpl::abortClientNavigation() {
   if (m_webFrame->client())
     m_webFrame->client()->abortClientNavigation();
 }
 
 }  // namespace blink