GitLab

No one seems to know why we have BrowserActionView and BrowserActionButton.
Let's combine them for simplicity.

BUG=402526

Review URL: https://codereview.chromium.org/411063003

Cr-Commit-Position: refs/heads/master@{#289092}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@289092 0039d316-1c4b-4281-b951-d872f2087c98