Revert 249982 "Omnibox: Pass Input Box Type to AutocompleteClass..."

> Omnibox: Pass Input Box Type to AutocompleteClassifier
> 
> (where possible and reasonable)
> 
> This is a resubmission of https://codereview.chromium.org/138173007/
> that should have fixed the gtk compile error.
> 
> 
> Previously, the input box type (a.k.a. current page classification)
> (search results page doing search term replacement, arbitrary URL,
> new tab page omnibox, new tab page fakebox, etc.) was not passed to
> AutocompleteClassifier. This adds plumbing to pass the variable to
> the classifier in some cases. (Some other cases I decided were too
> much of a hassle to fix, and not important.)
> 
> TBR=brettw,pkasting
> brettw:
> for changes to chrome/browser/tab_contents/render_view_context_menu.cc
> pkasting:
> because he already reviewed it
> 
> BUG=265678
> 
> Review URL: https://codereview.chromium.org/157033005

TBR=mpearson@chromium.org

Review URL: https://codereview.chromium.org/158433003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249984 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249984