GitLab

* Eliminte the distinction between "item to item padding" and "item to edge
  padding" because the two values are always equal.
* Don't bother supporting "height 0 = use preferred height" in
  location_bar_layout.*, since only one caller uses it at this point and it's
  easier to understand the code by just making it explicit.
* Switch to using a views::Painter for the popup mode background as well,
  instead of explicitly drawing the images.  This will make it easy to switch
  both modes to ninebox painting in the future.
* Try to reorder code in order to declare variables as close to their use as
  possible, and in the order that they're accessed.
* Visible change: Instead of assuming the edit always has 1 px. of "internal
  space", calculate the correct conditions for which that's true.  This results
  in the OmniboxViewViews text moving right by 1 px. in the LTR case.

BUG=231005,239902
TEST=With "views textfield" on, address bar text moves 1 px. right
R=sky@chromium.org

Review URL: https://codereview.chromium.org/16025004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202916 0039d316-1c4b-4281-b951-d872f2087c98