Fixing renderer's access to a file from HTTP POST (after a xsite transfer).

content/public/test/content_browser_test_utils.h

Index: content/public/test/content_browser_test_utils.h
diff --git a/content/public/test/content_browser_test_utils.h b/content/public/test/content_browser_test_utils.h
index e198b1ed4f74b64c7951f099942f55304a68dcbf..25d5a88106105be4e94130d0c0d4039857d4cc3d 100644
--- a/content/public/test/content_browser_test_utils.h
+++ b/content/public/test/content_browser_test_utils.h
@@ -6,6 +6,7 @@
 #define CONTENT_PUBLIC_TEST_CONTENT_BROWSER_TEST_UTILS_H_
 
 #include "base/callback.h"
+#include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "content/public/browser/web_contents_delegate.h"
@@ -135,6 +136,25 @@ class ConsoleObserverDelegate : public WebContentsDelegate {
   DISALLOW_COPY_AND_ASSIGN(ConsoleObserverDelegate);
 };
 
+// Helper for mocking choosing a file via a file dialog.
+class FileChooserDelegate : public WebContentsDelegate {

[Charlie Reis, 2016/06/17 07:13:36]

This should probably go in content_browser_test_utils_internal.h if there aren't
any uses of it outside content.

[Łukasz Anforowicz, 2016/06/17 16:44:47]

Done.

+ public:
+  // Constructs a WebContentsDelegate that mocks a file dialog.
+  // The mocked file dialog will always reply that the user selected |file|.
+  FileChooserDelegate(const base::FilePath& file);
+
+  // Implementation of WebContentsDelegate::RunFileChooser.
+  void RunFileChooser(RenderFrameHost* render_frame_host,
+                      const FileChooserParams& params) override;
+
+  // Whether the file dialog was shown.
+  bool file_chosen() { return file_chosen_; }
+
+ private:
+  base::FilePath file_;
+  bool file_chosen_;
+};
+
 #if defined OS_MACOSX
 void SetWindowBounds(gfx::NativeWindow window, const gfx::Rect& bounds);
 #endif