Revert 244708 "Manual profile reset: reset shortcuts on Windows."
Looks like it causes ProfileSettingsResetWebUITest.testOpenProfileSettingsReset to fail most of the time.

> Manual profile reset: reset shortcuts on Windows.
> 
> BUG=324931
> 
> Review URL: https://codereview.chromium.org/116143003

TBR=vasilii@chromium.org

Review URL: https://codereview.chromium.org/134873009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244766 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 244766
Remove some code inside USE_AURA and OS_WIN ifdefs in content.

I also removed the _win.cc files inside content.

BUG=330735
R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/137403005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244768 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 244768