Add a test case for mouse hover on annotation with empty content.

R=dsinclair@chromium.org

Review URL: https://codereview.chromium.org/2301793002 .
3 files changed
tree: 761e1b4cb97012bb7d669f6a733949569c0724c4
  1. LICENSE
  2. codereview.settings
  3. fx/
  4. pdfium/
  5. third_party/
  6. xfa_specific/