[ChromeDriver] Subscribe PerformanceLogger to CommandListener interface

BUG=

Review URL: https://codereview.chromium.org/353063005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283003 0039d316-1c4b-4281-b951-d872f2087c98
Revert 283003 "[ChromeDriver] Subscribe PerformanceLogger to Com..."

> [ChromeDriver] Subscribe PerformanceLogger to CommandListener interface
> 
> BUG=
> 
> Review URL: https://codereview.chromium.org/353063005

TBR=johnmoore@google.com

Review URL: https://codereview.chromium.org/392623005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283023 0039d316-1c4b-4281-b951-d872f2087c98
Fixes for re-enabling more MSVC level 4 warnings: chrome/ edition

This contains fixes for the following sorts of issues:
* Signedness mismatch
* Assignment inside conditional
* Constant value was truncated
* Possibly-uninitialized local variable

BUG=81439
TEST=none

Review URL: https://codereview.chromium.org/377683002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283305 0039d316-1c4b-4281-b951-d872f2087c98