[CleanUp] Removed unused inclusions of 'base/profiler/scoped_tracker.h'.

Removed unused inclusions of 'base/profiler/scoped_tracker.h' header
file from 'chrome/browser'.

BUG=580534

Review-Url: https://codereview.chromium.org/1616073005
Cr-Commit-Position: refs/heads/master@{#390603}
7 files changed