Start using RenderFrameProxyHost objects.

content/browser/site_per_process_browsertest.cc

Index: content/browser/site_per_process_browsertest.cc
diff --git a/content/browser/site_per_process_browsertest.cc b/content/browser/site_per_process_browsertest.cc
index 3adb455acc2645052a59374a35b4d3e36de71e33..7b05496060b28a9b3af8c45bbdc2b5c08822c8f7 100644
--- a/content/browser/site_per_process_browsertest.cc
+++ b/content/browser/site_per_process_browsertest.cc
@@ -216,6 +216,8 @@ IN_PROC_BROWSER_TEST_F(SitePerProcessBrowserTest, CrossSiteIframe) {
 
   // Load same-site page into iframe.
   FrameTreeNode* child = root->child_at(0);
+  LOG(ERROR) << "Load same site page.";
+
   GURL http_url(test_server()->GetURL("files/title1.html"));
   NavigateFrameToURL(child, http_url);
   EXPECT_EQ(http_url, observer.navigation_url());
@@ -238,6 +240,7 @@ IN_PROC_BROWSER_TEST_F(SitePerProcessBrowserTest, CrossSiteIframe) {
   std::string foo_com("foo.com");
 
   // Load cross-site page into iframe.
+  LOG(ERROR) << "Load cross-site page.";
   GURL cross_site_url(test_server()->GetURL("files/title2.html"));
   replace_host.SetHostStr(foo_com);
   cross_site_url = cross_site_url.ReplaceComponents(replace_host);