R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1218153005.

Remove Material's opinion about background colours, since in fact the background colour varies dramatically with the kind of material involved.

Also:
- give users of Material who previously relied on Material's defaults
  opinions about background colours
- reindent stock_row.dart
- import colors as colors in example/widgets/styled_text.dart, rather
  than in global scope, for consistency with other files
- import typography as typograpyh in example/widgets/tabs.dart, rather
  than in global scope, for consistency with other files
- make flat_button actually be transparent by not painting a
  background, rather than painting 0x00000000. This is the what I
  actually originally set out to do here.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1217293003.

R=ianh@google.com, abarth, hixie

Review URL: https://codereview.chromium.org/1217623002.

We're trying to follow the pattern described in https://www.dartlang.org/tools/pub/package-layout.html

TBR=iansf@google.com

Review URL: https://codereview.chromium.org/1210173004.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1218593002.

Let's hide double.INFINITY a bit more, by providing cleaner APIs for the cases where we're currently trying to use it.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1209233002.

Also, some minor cleanup in TextStyle to make it more readable.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1203253002.

R=ianh@google.com, hixie

Review URL: https://codereview.chromium.org/1204523002.

R=abarth@chromium.org, abarth, hixie

Review URL: https://codereview.chromium.org/1194743003.

Turn on wavy underlines. The waves aren't very pretty yet (they are too short somehow), I'll fix that in a subsequent CL.

I abstracted out the wavy underline code so that it doesn't duplicate the code for horizontal and vertical lines.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1201503003.

Currently only the decoration property is actually translated to a CSS style.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1174213005.

tree of InlineStyle and InlineText elements.
StyledText builds an Inline that renders the tree.

For example this StyledText object:

  new StyledText(["FOO", [boldLargerStyle, [greenStyle "BAR"], "BAZ"] BORF]);

Renders the same way the following HTML would,
assuming that TextStyles boldLargerStyle and
greenStyle were defined.

<style>
div {
  display: inline;
}
</style>
<p>
  <div>
    FOO
    <div style="font-weight:bold; font-size:larger">
      <div style="color:green">
        BAR
      </div>
      BAZ
    </div>
    BORF
  </div>
</p>

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1194693002.