Fix MimeHandlerView plugin loading for data: URLs

extensions/browser/guest_view/mime_handler_view/mime_handler_view_browsertest.cc

Index: extensions/browser/guest_view/mime_handler_view/mime_handler_view_browsertest.cc
diff --git a/extensions/browser/guest_view/mime_handler_view/mime_handler_view_browsertest.cc b/extensions/browser/guest_view/mime_handler_view/mime_handler_view_browsertest.cc
index b3ee7bccc669c47b7d73b5e3f866e556ad84f9c8..6aab459567e184a648bba57f7aca783751856a19 100644
--- a/extensions/browser/guest_view/mime_handler_view/mime_handler_view_browsertest.cc
+++ b/extensions/browser/guest_view/mime_handler_view/mime_handler_view_browsertest.cc
@@ -30,22 +30,24 @@ class MimeHandlerViewTest : public ExtensionApiTest {
     return extension;
   }
 
-  void RunTest(const std::string& path) {
+  void RunTestWithUrl(const GURL& url) {
     const extensions::Extension* extension = LoadTestExtension();
     ASSERT_TRUE(extension);
 
-    ASSERT_TRUE(StartEmbeddedTestServer());
-    embedded_test_server()->ServeFilesFromDirectory(
-        test_data_dir_.AppendASCII("mime_handler_view"));
-
     extensions::ResultCatcher catcher;
-
-    ui_test_utils::NavigateToURL(browser(),
-                                 embedded_test_server()->GetURL("/" + path));
+    ui_test_utils::NavigateToURL(browser(), url);
 
     if (!catcher.GetNextResult())
       FAIL() << catcher.message();
   }
+
+  void RunTest(const std::string& path) {
+    ASSERT_TRUE(StartEmbeddedTestServer());
+    embedded_test_server()->ServeFilesFromDirectory(
+        test_data_dir_.AppendASCII("mime_handler_view"));
+
+    RunTestWithUrl(embedded_test_server()->GetURL("/" + path));
+  }
 };
 
 IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, PostMessage) {
@@ -71,3 +73,16 @@ IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, Abort) {
 IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, NonAsciiHeaders) {
   RunTest("testNonAsciiHeaders.csv");
 }
+
+IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, DataUrl) {
+  const char* kDataUrlCsv = "data:text/csv;base64,Y29udGVudCB0byByZWFkCg==";
+  RunTestWithUrl(GURL(kDataUrlCsv));
+}
+
+IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, EmbeddedDataUrlObject) {
+  RunTest("test_embedded_data_url_object.html");
+}
+
+IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, EmbeddedDataUrlEmbed) {
+  RunTest("test_embedded_data_url_embed.html");
+}