Fix a bug of adding callback for opening developer tool.

For the "Open developer tool" button in app indexing testing tool,
run the call back on EdtExecutor.INSTANCE

Test: N/A
Change-Id: I0b64127b438afa14e73d6fa85313246b6ea3f2e9
(cherry picked from commit 9958fabc6cb3d372a8005c13702546cd769acb88)
1 file changed
tree: 5bd1d36f4b2064f3faafafce17c11858aac35f4e
  1. BUILD
  2. google-appindexing.iml
  3. lib/
  4. resources/
  5. src/
  6. testData/
  7. testSrc/