Refactor DocumentMarkerController on top of new DocumentMarkerListEditor class
Based on yosin's comment on a previous version of this CL:
https://codereview.chromium.org/2812423002#msg7
This CL is step 1, "Introduce DMListEditor with in-place changes of DMC: Except for DMListEditor.h, changes are small". In this CL, I'm pulling out some of the
DocumentMarkerController implementation code into a DocumentMarkerListEditor class.
In a future CL, I will move this class into its own .h/.cpp files (I'm leaving it
in place for now to make the patch smaller).
BUG=707867
Review-Url: https://codereview.chromium.org/2812423002
Cr-Commit-Position: refs/heads/master@{#465092}
2 files changed
