Allowing multiple SaveItems to have same URLs.

chrome/browser/download/save_page_browsertest.cc

Index: chrome/browser/download/save_page_browsertest.cc
diff --git a/chrome/browser/download/save_page_browsertest.cc b/chrome/browser/download/save_page_browsertest.cc
index eeacdc6f6b9901cfaf0b2114adfe895882d56893..23595b3396638cd6f0a7eb8eb9c5a8c33d58d9a8 100644
--- a/chrome/browser/download/save_page_browsertest.cc
+++ b/chrome/browser/download/save_page_browsertest.cc
@@ -1072,6 +1072,26 @@ IN_PROC_BROWSER_TEST_P(SavePageMultiFrameBrowserTest, NestedFrames) {
   TestMultiFramePage(save_page_type, url, 3, expected_substrings);
 }
 
+IN_PROC_BROWSER_TEST_P(SavePageMultiFrameBrowserTest, RuntimeChanges) {
+  content::SavePageType save_page_type = GetParam();
+
+  std::vector<std::string> expected_substrings{
+      "frames-runtime-changes.htm: 396f17f2-2c48-4793-a570-bc856e66e75d",
+      // TODO(lukasza): Need to avoid uri-based deduping (which currently
+      // happens in a map from uris into local paths.
+      // "subframe1: 21595339-61fc-4854-b6df-0668328ea263",
+      // "subframe2: adf55719-15e7-45be-9eda-d12fe782a1bd",
+      // TODO(lukasza): Need to also fix inline / srcdoc frames.
+      // "subframe3: 50e294bf-3a5b-499d-8772-651ead26952f",
+      // "subframe4: e0ea9289-7467-4d32-ba5c-c604e8d84cb7",
+  };
+
+  GURL url(embedded_test_server()->GetURL(
+      "a.com", "/save_page/frames-runtime-changes.htm?do_runtime_changes=1"));
+
+  TestMultiFramePage(save_page_type, url, 5, expected_substrings);
+}
+
 INSTANTIATE_TEST_CASE_P(
     SaveType,
     SavePageMultiFrameBrowserTest,