Created a trigger utils file for methods common to safebrowsing triggers.

Bug: 965587
Change-Id: I38bebf7e51d02990c990398795c487318d2cef01
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1622925
Reviewed-by: Varun Khaneja <vakh@chromium.org>
Reviewed-by: Luke Z <lpz@chromium.org>
Reviewed-by: Daniel Rubery <drubery@chromium.org>
Commit-Queue: Archana Simha <archanasimha@google.com>
Cr-Commit-Position: refs/heads/master@{#663277}
4 files changed