tree f316ae4bb2d36c0dc563dc6717c82068fb8d412f
parent 612f8dfcd848887da025ecb8f0586e3c013914ce
author Becky Siegel <beckysiegel@google.com> 1509736944 -0700
committer Paladox <thomasmulhall410@yahoo.com> 1519331410 +0000

Consolidate button styles and update disabled

Mostly general cleanup, also the following changes:
- Disabled flat buttons will have a fully transparent background (before
  it was a partially transparent white background)
- Disabled raised buttons have a (light) grey background and (darker)
  grey text. There is no difference in the disabled styling whether the
  button is primary or not.
- Add loading as a property on gr-button, translate that into disabled
  on the paper-button, which removes some CSS rules.

Bug: Issue 7496
Change-Id: Iae0564d099508827c8f13fbb943c6646d631ce1d