Disallow was_within_same_page = true for a cross-process navigation.

content/browser/frame_host/navigator_impl_unittest.cc

Index: content/browser/frame_host/navigator_impl_unittest.cc
diff --git a/content/browser/frame_host/navigator_impl_unittest.cc b/content/browser/frame_host/navigator_impl_unittest.cc
index efb85766a817bd414a0de3a5063f90886c805664..28cce0799b7ad897534eea5134c33ae9466928cc 100644
--- a/content/browser/frame_host/navigator_impl_unittest.cc
+++ b/content/browser/frame_host/navigator_impl_unittest.cc
@@ -1146,4 +1146,34 @@ TEST_F(NavigatorTestWithBrowserSideNavigation,
   }
 }
 
+namespace {
+void SetWithinPage(const GURL& url,
+                   FrameHostMsg_DidCommitProvisionalLoad_Params* params) {
+  params->was_within_same_page = true;
+  params->url = url;
+}
+}
+
+// A renderer process might try and claim that a cross site navigation was
+// within the same page by setting was_within_same_page = true for
+// FrameHostMsg_DidCommitProvisionalLoad. Such case should be detected on the
+// browser side and the renderer process should be killed.
+TEST_F(NavigatorTestWithBrowserSideNavigation, CrossSiteClaimWithinPage) {
+  const GURL kUrl1("http://www.chromium.org/");
+  const GURL kUrl2("http://www.google.com/");
+
+  contents()->NavigateAndCommit(kUrl1);
+  FrameTreeNode* node = main_test_rfh()->frame_tree_node();
+
+  // Navigate to a different site.
+  int entry_id = RequestNavigation(node, kUrl2);
+  main_test_rfh()->PrepareForCommit();
+
+  // Claim that the navigation was within same page.
+  int bad_msg_count = process()->bad_msg_count();
+  GetSpeculativeRenderFrameHost(node)->SendNavigateWithModificationCallback(
+      0, entry_id, true, kUrl2, base::Bind(SetWithinPage, kUrl1));
+  EXPECT_EQ(process()->bad_msg_count(), bad_msg_count + 1);
+}
+
 }  // namespace content